GNOME shell crashes / terminates instantly
I am on Fedora 28 using GNOME 3.28.1 and after a while it becomes impossible to login into GNOME.
I have reinstalled Fedora 28 completely and deleted all the . folders into every user home folder, as I read that some extensions could cause similar issues.
It does not happen immediately after a reboot, but after a few hours and not always. But when it happens, for a particular user it becomes impossible to login again.
I attach the content of the journal around the time the user "jackie" failed to login, I cant see anything useful. journal.crash.txt
Other users are still able to login, but for this particular user only a reboot works.
Anything I can do to identify the exact problem?