better error handling from venvs

nostr_dvm/tasks/imagegeneration_openai_dalle.py

@@ -116,9 +116,9 @@ class ImageGenerationDALLE(DVMTaskInterface):
             return result
 
         except Exception as e:
-            print("Error in Module")
-            raise Exception(e)
-
+            if str(e).startswith("Error code: 400"):
+                raise Exception('Your request was rejected as a result of OpenAI´s safety system. Your prompt may '
+                                'contain text that is not allowed by their safety system.')
 
 # We build an example here that we can call by either calling this file directly from the main directory,
 # or by adding it to our playground. You can call the example and adjust it to your needs or redefine it in the