Actually, regarding the actual issue, are you referring to the issue described here?
Because I already replied to that (so why do you insist there is no official support?). I already told you the URL parsing of your website is wrong. And anything that could add anything to the URL (Cloudflare security challenges, analytics referrer tags, search strings, you name it) will break your page routing. Your code is flawed and quite fragile because of that.
But it’s all easy to fix. Just not by complaining about our hosting.