diff --git a/src/balancer/Pool.ts b/src/balancer/Pool.ts
index 60ab4cdab..6dcbd2cb8 100644
--- a/src/balancer/Pool.ts
+++ b/src/balancer/Pool.ts
@@ -82,7 +82,7 @@ export class Pool extends PoolFactory {
         )
         .send({ from: account, gas: this.GASLIMIT_DEFAULT })
     } catch (e) {
-      console.error('Pool.setup failed:' + e)
+      console.error(`ERROR: Failed to setup a pool: ${e.message}`)
     }
     return result
   }
@@ -134,7 +134,7 @@ export class Pool extends PoolFactory {
         .approve(spender, amount)
         .send({ from: account, gas: this.GASLIMIT_DEFAULT })
     } catch (e) {
-      console.error(e)
+      console.error(`ERRPR: Failed to approve spender to spend tokens : ${e.message}`)
     }
     return result
   }
@@ -152,7 +152,7 @@ export class Pool extends PoolFactory {
       const balance = await token.methods.balanceOf(account).call()
       result = this.web3.utils.fromWei(balance)
     } catch (e) {
-      console.error(e)
+      console.error(`ERROR: Failed to get shares of pool : ${e.message}`)
     }
     return result
   }
@@ -190,7 +190,7 @@ export class Pool extends PoolFactory {
           )
           .send({ from: account, gas: this.GASLIMIT_DEFAULT })
       } catch (e) {
-        console.error(e)
+        console.error(`ERROR: Failed to add tokens to pool: ${e.message}`)
       }
     }
   }
@@ -215,7 +215,7 @@ export class Pool extends PoolFactory {
         .setSwapFee(this.web3.utils.toWei(fee))
         .send({ from: account, gas: this.GASLIMIT_DEFAULT })
     } catch (e) {
-      console.error(e)
+      console.error(`ERROR: Failed to set pool swap fee: ${e.message}`)
     }
     return result
   }
@@ -235,7 +235,7 @@ export class Pool extends PoolFactory {
         .finalize()
         .send({ from: account, gas: this.GASLIMIT_DEFAULT })
     } catch (e) {
-      console.error(e)
+      console.error(`ERROR: Failed to finalize pool: ${e.message}`)
     }
     return result
   }
@@ -251,7 +251,7 @@ export class Pool extends PoolFactory {
     try {
       result = await pool.methods.getNumTokens().call()
     } catch (e) {
-      console.error(e)
+      console.error(`ERROR: Failed to get number of tokens: ${e.message}`)
     }
     return result
   }
@@ -268,7 +268,7 @@ export class Pool extends PoolFactory {
       const result = await pool.methods.totalSupply().call()
       amount = this.web3.utils.fromWei(result)
     } catch (e) {
-      console.error(e)
+      console.error(`ERROR: Failed to get total supply of pool shares: ${e.message}`)
     }
     return amount
   }
@@ -284,7 +284,7 @@ export class Pool extends PoolFactory {
     try {
       result = await pool.methods.getCurrentTokens().call()
     } catch (e) {
-      console.error(e)
+      console.error(`ERROR: Failed to get tokens composing this pool: ${e.message}`)
     }
     return result
   }
@@ -300,7 +300,7 @@ export class Pool extends PoolFactory {
     try {
       result = await pool.methods.getFinalTokens().call()
     } catch (e) {
-      console.error(e)
+      console.error(`ERROR: Failed to get the final tokens composing this pool`)
     }
     return result
   }
@@ -316,7 +316,7 @@ export class Pool extends PoolFactory {
     try {
       result = await pool.methods.getController().call()
     } catch (e) {
-      console.error(e)
+      console.error(`ERROR: Failed to get pool controller address: ${e.message}`)
     }
     return result
   }
@@ -342,7 +342,7 @@ export class Pool extends PoolFactory {
         .setController(controllerAddress)
         .send({ from: account, gas: this.GASLIMIT_DEFAULT })
     } catch (e) {
-      console.error(e)
+      console.error(`ERROR: Failed to set pool controller: ${e.message}`)
     }
     return result
   }
@@ -359,7 +359,7 @@ export class Pool extends PoolFactory {
     try {
       result = await pool.methods.isBound(token).call()
     } catch (e) {
-      console.error(e)
+      console.error(`ERROR: Failed to check if a token bounded to a pool: ${e.message}`)
     }
     return result
   }
@@ -377,7 +377,7 @@ export class Pool extends PoolFactory {
       const result = await pool.methods.getBalance(token).call()
       amount = this.web3.utils.fromWei(result)
     } catch (e) {
-      console.error(e)
+      console.error(`ERROR: Failed to get how many tokens are in the pool: ${e.message}`)
     }
     return amount
   }
@@ -393,7 +393,7 @@ export class Pool extends PoolFactory {
     try {
       result = await pool.methods.isFinalized().call()
     } catch (e) {
-      console.error(e)
+      console.error(`ERROR: Failed to check whether pool is finalized: ${e.message}`)
     }
     return result
   }
@@ -410,7 +410,7 @@ export class Pool extends PoolFactory {
       const result = await pool.methods.getSwapFee().call()
       fee = this.web3.utils.fromWei(result)
     } catch (e) {
-      console.error(e)
+      console.error(`ERROR: Failed to get pool fee: ${e.message}`)
     }
     return fee
   }
@@ -428,7 +428,7 @@ export class Pool extends PoolFactory {
       const result = await pool.methods.getNormalizedWeight(token).call()
       weight = this.web3.utils.fromWei(result)
     } catch (e) {
-      console.error(e)
+      console.error(`ERROR: Failed to get normalized weight of a token: ${e.message}`)
     }
     return weight
   }
@@ -446,7 +446,7 @@ export class Pool extends PoolFactory {
       const result = await pool.methods.getDenormalizedWeight(token).call()
       weight = this.web3.utils.fromWei(result)
     } catch (e) {
-      console.error(e)
+      console.error('ERROR: Failed to get denormalized weight of a token in pool')
     }
     return weight
   }
@@ -463,7 +463,7 @@ export class Pool extends PoolFactory {
       const result = await pool.methods.getTotalDenormalizedWeight().call()
       weight = this.web3.utils.fromWei(result)
     } catch (e) {
-      console.error(e)
+      console.error('ERROR: Failed to get total denormalized weight in pool')
     }
     return weight
   }
@@ -503,7 +503,7 @@ export class Pool extends PoolFactory {
         )
         .send({ from: account, gas: this.GASLIMIT_DEFAULT })
     } catch (e) {
-      console.error(e)
+      console.error(`ERROR: Failed to swap exact amount in : ${e.message}`)
     }
     return result
   }
@@ -543,7 +543,7 @@ export class Pool extends PoolFactory {
         )
         .send({ from: account, gas: this.GASLIMIT_DEFAULT })
     } catch (e) {
-      console.error(e)
+      console.error(`ERROR: Failed to swap exact amount out: ${e.message}`)
     }
     return result
   }
@@ -580,7 +580,7 @@ export class Pool extends PoolFactory {
         .joinPool(this.web3.utils.toWei(poolAmountOut), weiMaxAmountsIn)
         .send({ from: account, gas: this.GASLIMIT_DEFAULT })
     } catch (e) {
-      console.error(e)
+      console.error(`ERROR: Failed to join pool: ${e.message}`)
     }
     return result
   }
@@ -614,7 +614,7 @@ export class Pool extends PoolFactory {
         .exitPool(this.web3.utils.toWei(poolAmountIn), weiMinAmountsOut)
         .send({ from: account, gas: this.GASLIMIT_DEFAULT })
     } catch (e) {
-      console.error(e)
+      console.error(`ERROR: Failed to exit pool: ${e.message}`)
     }
     return result
   }
@@ -648,7 +648,7 @@ export class Pool extends PoolFactory {
         )
         .send({ from: account, gas: this.GASLIMIT_DEFAULT })
     } catch (e) {
-      console.error(e)
+      console.error(`ERROR: Failed to pay tokens in order to join the pool: ${e.message}`)
     }
     return result
   }
@@ -682,7 +682,7 @@ export class Pool extends PoolFactory {
         )
         .send({ from: account, gas: this.GASLIMIT_DEFAULT })
     } catch (e) {
-      console.error(e)
+      console.error('ERROR: Failed to join swap pool amount out')
     }
     return result
   }
@@ -716,7 +716,7 @@ export class Pool extends PoolFactory {
         )
         .send({ from: account, gas: this.GASLIMIT_DEFAULT })
     } catch (e) {
-      console.error(e)
+      console.error(`ERROR: Failed to pay pool shares into the pool: ${e.message}`)
     }
     return result
   }
@@ -750,7 +750,7 @@ export class Pool extends PoolFactory {
         )
         .send({ from: account, gas: this.GASLIMIT_DEFAULT })
     } catch (e) {
-      console.error(e)
+      console.error('ERROR: Failed to exitswapExternAmountOut')
     }
     return result
   }
@@ -773,7 +773,7 @@ export class Pool extends PoolFactory {
       const result = await pool.methods.getSpotPrice(tokenIn, tokenOut).call()
       price = this.web3.utils.fromWei(result)
     } catch (e) {
-      console.error(e)
+      console.error('ERROR: Failed to get spot price of swapping tokenIn to tokenOut')
     }
     return price
   }
@@ -796,7 +796,7 @@ export class Pool extends PoolFactory {
       const result = await pool.methods.getSpotPriceSansFee(tokenIn, tokenOut).call()
       price = this.web3.utils.fromWei(result)
     } catch (e) {
-      console.error(e)
+      console.error('ERROR: Failed to getSpotPriceSansFee')
     }
     return price
   }
@@ -825,7 +825,7 @@ export class Pool extends PoolFactory {
         .call()
       amount = this.web3.utils.fromWei(result)
     } catch (e) {
-      console.error(e)
+      console.error('ERROR: Failed to calcInGivenOut')
     }
     return amount
   }
@@ -854,7 +854,7 @@ export class Pool extends PoolFactory {
         .call()
       amount = this.web3.utils.fromWei(result)
     } catch (e) {
-      console.error(e)
+      console.error('ERROR: Failed to calcOutGivenIn')
     }
     return amount
   }
@@ -883,7 +883,7 @@ export class Pool extends PoolFactory {
         .call()
       amount = this.web3.utils.fromWei(result)
     } catch (e) {
-      console.error(e)
+      console.error(`ERROR: Failed to calculate PoolOutGivenSingleIn : ${e.message}`)
     }
     return amount
   }
@@ -912,7 +912,7 @@ export class Pool extends PoolFactory {
         .call()
       amount = this.web3.utils.fromWei(result)
     } catch (e) {
-      console.error(e)
+      console.error(`ERROR: Failed to calculate SingleInGivenPoolOut : ${e.message}`)
     }
     return amount
   }
@@ -941,7 +941,7 @@ export class Pool extends PoolFactory {
         .call()
       amount = this.web3.utils.fromWei(result)
     } catch (e) {
-      console.error(e)
+      console.error(`ERROR: Failed to calculate SingleOutGivenPoolIn : ${e.message}`)
     }
     return amount
   }
@@ -970,7 +970,7 @@ export class Pool extends PoolFactory {
         .call()
       amount = this.web3.utils.fromWei(result)
     } catch (e) {
-      console.error(e)
+      console.error(`ERROR: Failed to calculate PoolInGivenSingleOut : ${e.message}`)
     }
     return amount
   }
diff --git a/src/balancer/PoolFactory.ts b/src/balancer/PoolFactory.ts
index bf363bc19..19c614d9e 100644
--- a/src/balancer/PoolFactory.ts
+++ b/src/balancer/PoolFactory.ts
@@ -29,12 +29,12 @@ export class PoolFactory {
    */
   async createPool(account: string): Promise<string> {
     if (this.web3 === null) {
-      console.error('Web3 object is null')
+      console.error('ERROR: Web3 object is null')
       return null
     }
 
     if (this.factoryAddress === null) {
-      console.error('bfactoryAddress is null')
+      console.error('ERROR: bfactoryAddress is null')
       return null
     }
 
@@ -51,7 +51,7 @@ export class PoolFactory {
     try {
       pooladdress = transactiondata.events.BPoolRegistered.returnValues[0]
     } catch (e) {
-      console.error(e)
+      console.error(`ERROR: Failed to create new pool: ${e.message}`)
     }
     return pooladdress
   }
diff --git a/src/datatokens/Datatokens.ts b/src/datatokens/Datatokens.ts
index 640b67459..d5dd1c051 100644
--- a/src/datatokens/Datatokens.ts
+++ b/src/datatokens/Datatokens.ts
@@ -92,7 +92,7 @@ export class DataTokens {
     const estGas = await factory.methods
       .createToken(metadataCacheUri, name, symbol, this.web3.utils.toWei(cap))
       .estimateGas(function (err: string, estGas: string) {
-        if (err) console.log('Datatokens: ' + err)
+        if (err) console.error(`ERROR: Datatokens : ${err}`)
         return estGas
       })
     // Invoke createToken function of the contract
@@ -108,7 +108,7 @@ export class DataTokens {
     try {
       tokenAddress = trxReceipt.events.TokenCreated.returnValues[0]
     } catch (e) {
-      console.error(e)
+      console.error(`ERROR: Failed to create datatoken : ${e.message}`)
     }
     return tokenAddress
   }
@@ -157,7 +157,7 @@ export class DataTokens {
     const estGas = await datatoken.methods
       .mint(destAddress, this.web3.utils.toWei(amount))
       .estimateGas(function (err, estGas) {
-        if (err) console.log('Datatokens: ' + err)
+        if (err) console.error(`ERROR: Datatokens : ${err}`)
         return estGas
       })
 
@@ -373,7 +373,7 @@ export class DataTokens {
         .send({ from: address, gas: 600000 })
       return trxReceipt
     } catch (e) {
-      console.error(e)
+      console.error(`ERROR: Failed to start order : ${e.message}`)
       return null
     }
   }
diff --git a/src/exchange/FixedRateExchange.ts b/src/exchange/FixedRateExchange.ts
index f90c08cad..2e3343e34 100644
--- a/src/exchange/FixedRateExchange.ts
+++ b/src/exchange/FixedRateExchange.ts
@@ -91,7 +91,7 @@ export class OceanFixedRateExchange {
         })
       exchangeId = trxReceipt.events.ExchangeCreated.returnValues[0]
     } catch (e) {
-      console.error(e)
+      console.error(`ERROR: Failed to create new exchange: ${e.message}`)
     }
     return exchangeId
   }
@@ -144,7 +144,7 @@ export class OceanFixedRateExchange {
         })
       return trxReceipt
     } catch (e) {
-      console.error(e)
+      console.error(`ERROR: Failed to buy datatokens: ${e.message}`)
       return null
     }
   }
@@ -178,7 +178,7 @@ export class OceanFixedRateExchange {
         .setRate(exchangeId, this.web3.utils.toWei(String(newRate)))
         .estimateGas(function (err, estGas) {
           if (err) {
-            // console.log('FixedPriceExchange: ' + err)
+            console.error(`ERROR: FixedPriceExchange: ${err.message}`)
             return DEFAULT_GAS_LIMIT
           }
           return estGas
@@ -214,7 +214,7 @@ export class OceanFixedRateExchange {
         .toggleExchangeState(exchangeId)
         .estimateGas(function (err, estGas) {
           if (err) {
-            // console.log('FixedPriceExchange: ' + err)
+            console.error(`ERROR: FixedPriceExchange: ${err.message}`)
             estGas = DEFAULT_GAS_LIMIT
           }
           return estGas
@@ -248,7 +248,7 @@ export class OceanFixedRateExchange {
         .toggleExchangeState(exchangeId)
         .estimateGas(function (err, estGas) {
           if (err) {
-            // console.log('FixedPriceExchange: ' + err)
+            console.error(`ERROR: FixedPriceExchange: ${err.message}`)
             estGas = DEFAULT_GAS_LIMIT
           }
           return estGas
diff --git a/src/metadatacache/OnChainMetaDataCache.ts b/src/metadatacache/OnChainMetaDataCache.ts
index 4107a6c7c..93b7babfe 100644
--- a/src/metadatacache/OnChainMetaDataCache.ts
+++ b/src/metadatacache/OnChainMetaDataCache.ts
@@ -100,14 +100,14 @@ export class OnChainMetadataCache {
     consumerAccount: string
   ): Promise<TransactionReceipt> {
     if (!this.DDOContract) {
-      console.error('Missing DDOContract')
+      console.error('ERROR: Missing DDOContract')
       return null
     }
     try {
       /* const estGas = await this.DDOContract.methods
         .create(didZeroX(did), flags, data)
         .estimateGas(function (err, estGas) {
-          if (err) console.log('OnChainMetadataCacheEstimateGas: ' + err)
+          if (err) console.error('ERROR: OnChainMetadataCacheEstimateGas: ' + err)
           return estGas
         })
       */
@@ -116,7 +116,7 @@ export class OnChainMetadataCache {
         .send({ from: consumerAccount })
       return trxReceipt
     } catch (e) {
-      console.error(e.message)
+      console.error(`ERROR: Failed to publish raw DDO : ${e.message}`)
       return null
     }
   }
@@ -136,7 +136,7 @@ export class OnChainMetadataCache {
     consumerAccount: string
   ): Promise<TransactionReceipt> {
     if (!this.DDOContract) {
-      console.error('Missing DDOContract')
+      console.error('ERROR: Missing DDOContract')
       return null
     }
     try {
@@ -145,7 +145,7 @@ export class OnChainMetadataCache {
         .send({ from: consumerAccount })
       return trxReceipt
     } catch (e) {
-      console.error(e)
+      console.error(`ERROR: Failed to update raw DDO : ${e.message}`)
       return null
     }
   }
@@ -171,7 +171,7 @@ export class OnChainMetadataCache {
         })
       return trxReceipt
     } catch (e) {
-      console.error(e)
+      console.error(`ERROR: Failed to transfer DDO ownership : ${e.message}`)
       return null
     }
   }
@@ -201,7 +201,7 @@ export class OnChainMetadataCache {
         hex += '' + hexChar[(message[i] >> 4) & 0x0f] + hexChar[message[i] & 0x0f]
       }
     } catch (e) {
-      console.error(e)
+      console.error(`ERROR: Failed to get hex message value : ${e.message}`)
     }
     const hexMessage = '0x' + hex
     return hexMessage
diff --git a/src/ocean/Account.ts b/src/ocean/Account.ts
index 5237d0ddd..4ff84ce3b 100644
--- a/src/ocean/Account.ts
+++ b/src/ocean/Account.ts
@@ -111,7 +111,7 @@ export default class Account extends Instantiable {
       })
       result = this.web3.utils.fromWei(await token.methods.balanceOf(this.id).call())
     } catch (e) {
-      console.error(e)
+      console.error(`ERROR: Failed to get the balance: ${e.message}`)
     }
     return result
   }
diff --git a/src/ocean/Assets.ts b/src/ocean/Assets.ts
index 85536e770..f5b22be56 100644
--- a/src/ocean/Assets.ts
+++ b/src/ocean/Assets.ts
@@ -498,7 +498,7 @@ export class Assets extends Instantiable {
       const totalCost = new BigNumber(String(providerData.numTokens))
       if (balance.isLessThan(totalCost)) {
         console.error(
-          'Not enough funds. Needed ' +
+          'ERROR: Not enough funds Needed ' +
             totalCost.toString() +
             ' but balance is ' +
             balance.toString()
@@ -515,7 +515,7 @@ export class Assets extends Instantiable {
       )
       if (txid) return txid.transactionHash
     } catch (e) {
-      console.error(e)
+      console.error(`ERROR: Failed to order: ${e.message}`)
     }
     return null
   }
@@ -572,7 +572,6 @@ export class Assets extends Instantiable {
     consumeUrl += `&tokenAddress=${dtAddress}`
     consumeUrl += `&transferTxId=${txId}`
     const serviceConnector = new WebServiceConnector(this.logger)
-    console.log(consumeUrl)
     try {
       await serviceConnector.downloadFile(consumeUrl)
     } catch (e) {
@@ -580,7 +579,6 @@ export class Assets extends Instantiable {
       this.logger.error(e)
       throw e
     }
-
     return serviceEndpoint
   }
 
diff --git a/src/ocean/Compute.ts b/src/ocean/Compute.ts
index ba2e99b3a..3961e864c 100644
--- a/src/ocean/Compute.ts
+++ b/src/ocean/Compute.ts
@@ -395,7 +395,7 @@ export class Compute extends Instantiable {
         // check if raw algo is allowed
         if (service.attributes.main.privacy)
           if (!service.attributes.main.privacy.allowRawAlgorithm) {
-            console.error('This service does not allow Raw Algo')
+            console.error('ERROR: This service does not allow raw algorithm')
             return null
           }
       }
@@ -407,7 +407,7 @@ export class Compute extends Instantiable {
               if (
                 !service.attributes.main.privacy.trustedAlgorithms.includes(algorithmDid)
               ) {
-                console.error('This service does not allow this Algo')
+                console.error('ERROR: This service does not allow this algorithm')
                 return null
               }
       }
diff --git a/src/utils/ConfigHelper.ts b/src/utils/ConfigHelper.ts
index 6382f311b..8d76f9e04 100644
--- a/src/utils/ConfigHelper.ts
+++ b/src/utils/ConfigHelper.ts
@@ -91,7 +91,7 @@ export class ConfigHelper {
 
       return configAddresses
     } catch (e) {
-      console.error(`Could not load local contract address file: ${e.message}`)
+      console.error(`ERROR: Could not load local contract address file: ${e.message}`)
       return null
     }
   }