Update app.py

app.py

@@ -248,10 +248,11 @@ def certification(hf_username, first_name, last_name):
         if user_models == "":
             print("Empty")
             user_models = get_user_models(hf_username, "PandaReachDense-v2", unit["library"])
-    if unit["unit"] != "Unit 8 PII":
+    elif unit["unit"] != "Unit 8 PII":
     # Get user model
         user_models = get_user_models(hf_username, unit['env'], unit['library'])
     # For sample factory vizdoom we don't have env tag for now
+    
     else: 
       user_models = get_user_sf_models(hf_username, unit['env'], unit['library'])