This is the last error in the error log:
[07-Jul-2012 12:39:00 -0600]: DB Error: MDB2 Error: not found Query: _doQuery: [Error message: Could not execute statement] [Last executed query: SELECT update_passwd('$1$auKAJlNH$dHngX9uyvr3KJLUNUcPr0/', 'support@{masked}.com')] [Native code: 1305] [Native message: FUNCTION {masked}_rnd1.update_passwd does not exist] in /home4/{masked}/public_html/email/program/include/rcube_mdb2.php on line 719 (POST /email/?_task=settings&_action=plugin.password-save?_task=&_action=)