For a month or 2 guardian repo can’t be updated always shows a error.
Yes it is and tested on 2devices
Works fine here.
Try to toggle the repo off
Force close the Client
Then reopen and retoggle on
Which apps do you use from that repo?
Done that but not resolved
So i uninstalled that client and again reinstall that from fdroid website but got a error message
But with inatall anyway and now it looks like guardian repo does not create panic yet.
So i uninstalled that client and again reinstall that from fdroid website but got a error message
Not an error message… 
will go away soon