Ok. I think your website is infected. Or some security solution works incorrect on hosting service.
Infected? With what?
I don't know with what. You should check it with hosting too.
Check this topic and then run your URL check at:
https://www.ssllabs.com/ssltest/index.html
And let us know ....
Thanks Massimo. I tried that, but can't really understand the result.
Also have you tried with one browser or a few ? Could be a local (your pc) issue ? Some addon on the browser ?
It's definitely not that, Massimo. I've tried Firefox and Edge. Other users of the forum have tried Chrome. It affects all users, not just me.
Google " The requested URL was rejected. If you think this is an error, please contact the webmaster.
Your support ID is: "
and try each suggestion. Definitely not wpForo related.
I'm working with the hosting company to solve this. They are usually the source of any problem I have. I will need to change, but it's a big job, because I have several sites with them.
If you have Cpanel, moving is easy. But i know what you mean.
It is probably their warning you get, still they know from where it comes.
What is Cpanel, Massimo? Sorry if that's a stupid question, I'm learning some of this stuff as I go along.
Also, does anyone have any recommendations for hosting companies?
Ok, Cpanel is a Control Panel for all your domains, emails, dns, backups, php tuning.
As for hosting in US, i can only highly recommend the one i use. Check their reviews also.
You could contact them and ask if they can help in the transfer.