Fix returned exception for invalid token

server/atheneum/middleware/authentication_middleware.py

@@ -146,7 +146,7 @@ def require_token_auth(func: Callable) -> Callable:
             request.headers.get('Authorization', None))
         if token and authenticate_with_token(token.username, token.password):
             return func(*args, **kwargs)
-        return authentication_failed('Bearer')
+        return authentication_failed('Token')
 
     return decorate