Traceback (most recent call last): File "/home/mauricewaka/.local/lib/python3.6/site-packages/py4web/core.py", line 310, in load token_data, self.secret, algorithms=[self.algorithm]) File "/usr/lib/python3/dist-packages/jwt/api_jwt.py", line 78, in decode jwt, key=key, algorithms=algorithms, options=options, **kwargs File "/usr/lib/python3/dist-packages/jwt/api_jws.py", line 140, in decode key, algorithms) File "/usr/lib/python3/dist-packages/jwt/api_jws.py", line 207, in _verify_signature raise DecodeError('Signature verification failed') jwt.exceptions.DecodeError: Signature verification failed During handling of the above exception, another exception occurred: Traceback (most recent call last): File "/home/mauricewaka/.local/lib/python3.6/site-packages/py4web/core.py", line 469, in wrapper ret = func(*func_args, **func_kwargs) File "/home/mauricewaka/.local/lib/python3.6/site-packages/py4web/core.py", line 434, in wrapper [obj.on_request() for obj in fixtures] File "/home/mauricewaka/.local/lib/python3.6/site-packages/py4web/core.py", line 434, in <listcomp> [obj.on_request() for obj in fixtures] File "/home/mauricewaka/.local/lib/python3.6/site-packages/py4web/core.py", line 348, in on_request self.load() File "/home/mauricewaka/.local/lib/python3.6/site-packages/py4web/core.py", line 315, in load except (jwt.exceptions.InvalidSignatureError, AssertionError, ValueError): AttributeError: module 'jwt.exceptions' has no attribute 'InvalidSignatureError'