Thanks for the reply.
I’m pretty sure is not hack because the site is protected (and not fully live), and I don’t think that the problem is caused by a plugin because all the plugins I have now were working fine up to a week ago. I’ll provide a screenshot of the settings page of one the plugins that are not working properly and are loading their settings in the wrong way: https://snag.gy/YyuUtc.jpg
Again, thank you; I hope I gave you some useful informations.
