Fix submission feature

app.py

@@ -8,17 +8,23 @@ webhook_url = os.environ.get("WEBHOOK_URL")
 def submit_model(name):
     try:
         hf_hub_download(repo_id=name, filename="config.json") # sanity check input
-    except EntryNotFoundError:
+    except FileNotFoundError:
         return "# ERROR: Model does not have a config.json file!"
     except RepositoryNotFoundError:
         return "# ERROR: Model could not be found on the Hugging Face Hub!"
     except requests.exceptions.HTTPError:
         return "# ERROR: Network error while validating model. Please try again later."
+    except Exception as e:
+        print(e)
+        return "ERROR: Unexpected error. Please try again later."
     
     try:
         result = requests.post(webhook_url, json={"content":name})
     except requests.exceptions.HTTPError:
         return "# ERROR: Network error while contacting queue. Please try again in a few minutes."
+    except Exception as e:
+        print(e)
+        return "ERROR: Unexpected error. Please try again later."
     
     return "# SUCCESS: Please wait up to 24 hours for your model to be added to the queue."