changes made to app.py

app.py

@@ -10,7 +10,7 @@ import sys
 # Device and Model Setup
 # ===============================
 device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
-hf_token = os.environ("HF_TOKEN", None)
+hf_token = os.environ.get("HF_TOKEN", None)
 
 #Load the model
 model_path = "AI-Mock-Interviewer/T5"