Proper error message

app.py

@@ -41,7 +41,11 @@ def respond(
     message,
     history: list[tuple[str, str]]
 ):
-    _init()
+    try:
+        _init()
+    except Exception as e:
+        print(f"Error initializing model: {e}")
+        yield f"Error initializing model: {e}"
 
     messages = []