Update app.py

app.py

@@ -5,7 +5,7 @@ import json
 import transformers
 from transformers import AutoTokenizer, AutoModelForCausalLM
 
-hf_token = os.getenv("HuggingFace_Token")
+hf_token = os.getenv("HF_AUTH_TOKEN")
 vapi_url = "https://api-inference.huggingface.co/models/vectara/hallucination_evaluation_model"
 headers = {"Authorization": f"Bearer {hf_token}"}