Unable to sign in to Sonarr-- troubleshooting help?

I’m admittedly a bit green with a lot of aspects of this… I set up my profile yesterday and all was working well however, as of today I am unable to login to sonarr. I try to use my username and password and I am no longer able to connect at this point.

Last night I had accidentally deleted the forwarded port for Sonarr, but I thought I sorted it out by creating the new port forward. I havent made any changes to the config file; Forms.

I can connect via NZB360, so something is borked on my Router, right?

What are some other fail spots I can troubleshoot to get this sorted? Should I just try a reinstall?

In the config file change the AuthenticationType to None, restart Sonarr and setup the authentication again.