Perhaps it might be helpful to eliminate the immediate source of the problem. I don't think that this dialog box represents a bug by the way, just an irritating behavior created by Apport which creates crash reports.
In a terminal, enter pkexec caja, enter your password and then navigate to /var/crash/. Select all the files you find in that directory and delete them. Upon your next boot, you shouldn't get this dialog box.
Good luck all.