Deal with case where no WorkflowRequest was retrieved

services/workflow/workflow/server.py

@@ -520,7 +520,10 @@ class WorkflowRequestRestService:
         :return: A formatted string with the emails or an empty string if the contact info couldn't be retrieved
         """
 
-        if requested_workflow.argument is not None:
+        if requested_workflow is None:
+            logger.debug("get_contacts: Provided an invalid WorkflowRequest")
+            return ""
+        elif requested_workflow.argument is not None:
             if "user_email" in requested_workflow.argument:
                 return requested_workflow.argument["user_email"]
             elif "product_locator" in requested_workflow.argument:
@@ -552,7 +555,7 @@ class WorkflowRequestRestService:
             ) as wrested_contacts:
                 contacts = wrested_contacts.communicate()[0]
                 if "ERROR" in contacts.decode():
-                    logger.info(f"Contact wrester failed for project {project_code}")
+                    logger.debug(f"Contact wrester failed for project {project_code}")
                     return ""
 
         email_list = json.loads(contacts.decode())