how are your perl skills

- time to check /etc/e-smith/web/functions/useraccounts and the associated event(s) /etc/e-smith/events/XXX
A simple fix would be to backup and reboot to your 5.5 disk and choose the upgrade option (assuming there are damaged or missing files). However, depending on the addons you use, you might as well reinstall. Unfortunately we have no 5.5 servers installed or we could send you the contents of /etc/e-smith/web/ and /etc/e-smith/events/ and you could overwrite what you have. Perhaps another reader could assist?
tarball it (to preserve permissions)