Getting a 403 Forbidden Error with Nginx Proxy Manager – How to Fix It?

The 403 forbidden nginx proxy manager error can be a real headache. One thing to check is whether your Nginx user has read permissions for the files. Run `sudo chmod -R 755 /path/to/your/files` and see if that helps.

Also, if you’re using SSL, make sure your certificates are valid and properly configured. Sometimes a bad cert can trigger a 403.