Having this issue myself too, except I’m running the docker version on Ubuntu 21.04. Same exact error as y’all,
Failed to begin transaction (…/Plugins/PluginDatabaseState.cpp:110) (tries=1): Cannot begin transaction. database is locked
Posted a thread earlier under the server-docker tag here with logs, steps taken, etc.
For those saying downgrading didn’t work, I’m not sure which version you downgraded to… If it was above v1.23.3.4707, then try v1.23.3.4707. This is the last version (available on docker version tags at least) that works for me. Nothing should go wrong, but make a backup of your DB just in case before downgrading. No DB or other modifications were necessary, worked normally again after rolling back to and starting that version.
