Update app.py

repo_id not model

app.py

@@ -56,7 +56,7 @@ def add_new_eval(
     task_model_names = [m.id for m in task_models]
     if repo_id in model_list:
         return 'This model has already been run!'
-    if model not in task_model_names:
+    elif repo_id not in task_model_names:
         return "This model isn't compatible with the chosen task! Pick a different model-task combination"
     else:
         # Is the model info correctly filled?