[UBS] Management Order Controller GET Get address by order id responce 500

[MyloslavaM]

Environment: mac OS Big Sur 11,2 , browser Firefox 91.0b9
Reproducible: always

Preconditions

User is logged as admin
order has been created

Steps to reproduce

1. Go to 'https://greencity-ubs.azurewebsites.net/ubs/management/read-address-order/607'
2. Click submit

Actual result
{
"timestamp": "2021-08-20T16:35:37.125+0000",
"status": 500,
"error": "Internal Server Error",
"message": "source cannot be null",
"path": "/ubs/management/read-address-order/607"
}

Expected result
{
"comment": "string",
"district": "string",
"entranceNumber": "string",
"houseCorpus": "string",
"houseNumber": "string",
"street": "string"
}
The address should appear according to order id

User story and test case links
E.g.: "User story #2787
Test case"

Labels to be added
"Bug", Priority ("pri: "), Severity ("severity:"), Type ("UI, "Functional"), "API" (for back-end bugs).