This issue has been resolved.

The new login system has been pushed to production. As it is a new system, there may still be a few bugs. The analytics page does not currently work due to an issue with the hosting provider, but I'm hoping to work with them to find a solution.

As the client panel will be kept online until it is ready to be migrated, I have started pushing the auth system changes to production.

The new auth system is complete, and will be pushed to production after the scheduled maintenance.

While I'm unable to find the cause of the timeouts, I have started working on a different auth system that does not rely on an external service.

Attempting to access the client panel may result in a timeout and an error. Due to lack of clients using the panel, it is currently low priority and a fix is dependent on getting more clients. When enough funding can be obtained, this panel will be moved to a different server and there is a possibility of a rewrite of the auth system from our current provider to a custom developed system. However, at this point, the client panel may become obsolete.