The version of Linux Lite being used is jammy based.
The jtaylor keepass2 PPA software does not have a release compatible with jammy.
This conflict is causing the update process to error.
The incompatible jtaylor keepass2 software should be removed from the system.
After removing the software itself, ensure that the jtaylor keepass2 PPA reference is removed from the update list.
Removing the PPA reference from the update list should allow the update to run.
See
https://www.linuxliteos.com/manual/software.html#pparemIf using PPA software, it is important that the PPA has a release that is compatible with the OS in use.
See this link for advice on selecting and installing PPAs
https://www.linuxliteos.com/manual/software.html#ppaLite Software will install KeePassXC which is a fork of KeePass and may do what you want without needing a PPA.