I tried testing defender, and the moment I activated it, it broke my website.
Hardening page doesn't work.
Not only that, but even after deactivating it my website remains broken.
Even after deactivating and reactivating all plugins, I still have the issue.
Worse, even when reverting to a previous database backup I still have an issue.
And even worse, even after deleting the files related to the plugin (also in uploads) I still have the issue.
The issue is 16x Uncaught ReferenceError: jQuery is not defined
Seems my only option now is reinstall all files from a backup.