Register link does not work after deactivating/reactivating plugin

Hello, I am using your plugin on Multi-site setup. I activated the plugin on one site (not the entire network) and the plugin worked fine (Login page and links worked). I deactivated it and then went to reactivate again today on that same site to do further testing and the Register link (wp-signup.php) doesn’t work. I deactivated the plugin on the individual site, went to Network Admin > Plugins and deleted the plugin. I checked the plugin folder via FTP to verify there is no plugin folder. I reinstalled the plugin again via the Network Admin > Plugins and again activated it only on one site, the same site I used it on previously. The Register link does not work. I deactivated it again and decided to try it on another site to see if it would work. I activated the plugin on a different site and Register link on the login page works fine.

https://ww.wp.xz.cn/plugins/wp-force-login/