Merge pull request #4 from matheusmmo/master

Update Worker.php

Author: pierophp

src/Core/Worker.php

@@ -76,6 +76,10 @@ protected function firePost($job)
         }
 
         $response = json_decode($curlResponse);
+        
+        if (!$response) {
+            throw new \Exception($curlResponse);
+        }
 
         if ($response->status_code !== 200) {
             throw new \Exception($response->error_description, $response->error_code);
@@ -86,4 +90,4 @@ protected function firePost($job)
         }
     }
 
-}
+}