Fix site issue

You need to fix the bellow error. ERROR:[login to view URL]:Exception closing connection <[login to view URL] object at 0x7f4c70cca0b8> Traceback (most recent call last): File "/usr/local/lib/python3.6/dist-packages/chellow/[login to view URL]", line 38, in __call__ x_proto = environ["HTTP_X_FORWARDED_PROTO"] KeyError: 'HTTP_X_FORWARDED_PROTO' During handling of the above exception, another exception occurred: Traceback (most recent call last): File "/usr/local/lib/python3.6/dist-packages/pg8000/[login to view URL]", line 271, in sock_flush [login to view URL]() File "/usr/lib/python3.6/[login to view URL]", line 604, in write return [login to view URL](b) OSError: [Errno 88] Socket operation on non-socket The above exception was the direct cause of the following exception: Traceback (most recent call last): File "/usr/local/lib/python3.6/dist-packages/sqlalchemy/engine/[login to view URL]", line 1707, in _execute_context cursor, statement, parameters, context File "/usr/local/lib/python3.6/dist-packages/sqlalchemy/engine/[login to view URL]", line 716, in do_execute [login to view URL](statement, parameters) File "/usr/local/lib/python3.6/dist-packages/pg8000/[login to view URL]", line 245, in execute self._c.execute_unnamed("begin transaction") File "/usr/local/lib/python3.6/dist-packages/pg8000/[login to view URL]", line 640, in execute_unnamed self._flush() File "/usr/local/lib/python3.6/dist-packages/pg8000/[login to view URL]", line 273, in sock_flush raise InterfaceError("network error on flush") from e [login to view URL]: network error on flush The above exception was the direct cause of the following exception: Traceback (most recent call last):