diff --git a/app/bootstrap.php b/app/bootstrap.php
index dae0af0..b29939d 100644
--- a/app/bootstrap.php
+++ b/app/bootstrap.php
@@ -162,12 +162,9 @@ public function subscribe()
     /**
      * Have the plugin respond to an event
      *
-     * @param string $topic
-     * @param array $message
-     * @return void
      * @throws Exception
      */
-    public function respond($topic, $message)
+    public function respond(string $topic, Varien_Object $message): void
     {
         list($resource, $event) = explode(':', $topic, 2);
         if ( ! $this->getConfig("plugin/{$this->_plugin}/events/{$resource}/{$event}") && $topic != 'test:ping') {
@@ -364,10 +361,10 @@ public function log($message, $destination = NULL)
     /**
      * Write exception to log
      *
-     * @param Exception $e
+     * @param Throwable $e
      * @return void
      */
-    public function logException(Exception $e)
+    public function logException(Throwable $e)
     {
         $this->log("\n" . $e->__toString());
     }
diff --git a/lib/Varien/Object.php b/lib/Varien/Object.php
index 8210709..25b7b20 100644
--- a/lib/Varien/Object.php
+++ b/lib/Varien/Object.php
@@ -753,6 +753,7 @@ public function debug($data=NULL, &$objects=array())
      * @param string $offset
      * @param mixed $value
      */
+    #[\ReturnTypeWillChange]
     public function offsetSet($offset, $value)
     {
         $this->_data[$offset] = $value;
@@ -765,6 +766,7 @@ public function offsetSet($offset, $value)
      * @param string $offset
      * @return boolean
      */
+    #[\ReturnTypeWillChange]
     public function offsetExists($offset)
     {
         return isset($this->_data[$offset]);
@@ -776,6 +778,7 @@ public function offsetExists($offset)
      * @link http://www.php.net/manual/en/arrayaccess.offsetunset.php
      * @param string $offset
      */
+    #[\ReturnTypeWillChange]
     public function offsetUnset($offset)
     {
         unset($this->_data[$offset]);
@@ -788,6 +791,7 @@ public function offsetUnset($offset)
      * @param string $offset
      * @return mixed
      */
+    #[\ReturnTypeWillChange]
     public function offsetGet($offset)
     {
         return isset($this->_data[$offset]) ? $this->_data[$offset] : NULL;
diff --git a/pub/respond.php b/pub/respond.php
index 6898c47..de30f13 100644
--- a/pub/respond.php
+++ b/pub/respond.php
@@ -39,14 +39,16 @@
     if ( ! $message) {
         throw new Exception('Message not specified.', 400);
     }
+    $message = new Varien_Object($message);
 
     $middleware->log(sprintf('Received webhook for %s topic with message: %s', $topic, $json), 'webhooks.log');
     $middleware->respond($topic, $message);
-} catch (Exception $e) {
+} catch (Throwable $e) {
     if (empty($middleware)) {
         error_log($e->getMessage());
     } else {
         $middleware->logException($e);
     }
     http_response_code($e->getCode() ?: 500);
+    echo "ERROR: {$e->getMessage()}";
 }