When navigating as a guest, Categories pages displays fine, but when clicking on any advert, in mobile version i get a blank screen, with desktop - error 500 page not working... 

permissions for guests are all fine within the app

can someond help me out with this please?

This app has its own support topic. Please, post on the right topic.

 

I see you posted on my Tracker. Tks.

We'll continue there.

As the file in question has its own dedicated support topic here on this site as well as linked above, I'll close this topic to keep things tidy.