Update app.py

app.py

@@ -13,7 +13,7 @@ class RTFC:
     # Validate API Key
     def server(self, api_key):
         try:
-            self.client = Grok(api_key=api_key)
+            self.client = Groq(api_key=api_key)
             return True, "✅ API Key validated successfully"
         except Exception as e:
             return False, f"❌ Error: {str(e)}"