Webmail Stopped Working After Plesk Update

So, the other day I saw that PLESK has updated itself, and now webmail (RoundCube) isn't working anymore.

When I try to access webmail.domain.com it throws 403 error at me.

I am using the LiteSpeed extension if this makes any difference. Sites work fine. Webmail does not.

I am not even sure what logs to look at so I can understand better where the error is coming from.

Please help!