email-oauth2-proxy: Retry segment causes application to fail

Hey not a python developer but am using your email proxy program. We ran into an issue where the invalid token exception would retry and fail. Needed to restart to recover. I removed the retry functionality contained in and we no longer seem to have the issue. The following is the error we would receive after a retry attempt.

Email OAuth 2.0 Proxy Local server auth mode: please authorise a request for account rtoc@moblize.com 2023-08-22 15:52:43: Local server auth mode (localhost:6767): unable to start local server. Please check that redirect_uri for rtoc@moblize.com is unique across accounts, specifies a port number, and is not already in use. See the documentation in the proxy’s sample configuration file. OSError(98, ‘Address already in use’)

We are running in non-qui mode.