Dear Adam, the log you provided does not seem to indicate an issue with acquiring data from http://ppa.launchpad.net/jtaylor/keepass/ubuntu but from http://ppa.launchpad.net/daniel.pavel/solaar/ubuntu - a PPA which does not support your Ubuntu release (18.04 / bionic).
So this appears to not be a bug, just use of an incompatible PPA, making this more of a support request. I'm therefore changing the status to "invalid" - should I have missed relevant facts you are welcome to undo this change. Should you need further support with this, please consider one of the following options: https://www.ubuntu.com/support https://www.ubuntu.com/support/community-support Thanks, Tom -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1831025 Title: apt update fails with ` 404 Not Found [IP: 91.189.95.83 80]`. Possible cause: three dots in the sources.list To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1831025/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs