Update app.py

app.py

@@ -51,7 +51,7 @@ def generate_txt2img(current_model, prompt, is_negative=False, image_style="None
         API_URL = "https://api-inference.huggingface.co/models/playgroundai/playground-v2-1024px-aesthetic"  
 
         
-    API_TOKEN = os.environ.get("ct")
+    API_TOKEN = os.environ.get("HF_TOKEN")
     headers = {"Authorization": f"Bearer {API_TOKEN}"}