In fact, I only blocked some additional crawler user agents, but I doubt it has anything to do with such an issue 
(note that I didn’t get any more knowledge since the last minutes 
)
Well not sure what else I need to do and why the mobile app says the URL was not found.
Everything else works amazingly well.
You don’t have Discourse configured to use a CDN as described at Enable a CDN for your Discourse.
If you have all traffic going through your bunny.net cdn then there is some chance that it is causing a problem.
If your site isn’t working just on the app, my best guess is that you entered the wrong URL ( maybe it has to do with the proxy config somehow, but I can’t guess how).
Thanks but I wouldnt be that stupid to punch in the wrong URL, checked it many times and there is no proxy either. But it could be something with Bunny oh well.