OK, it sounds like the file '/var/crash/_sbin_plymouthd.0.crash' is corrupt. Please just delete it:
sudo rm /var/crash/_sbin_plymouthd.0.crash Then reboot and tell us if that stops the message from popping up. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1825630 Title: Problem dected message pops up when I boot up To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1825630/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs