ErrorNo: 1030, Message:Database error while executing: 'SELECT r.*
FROM xar_roles r, xar_rolemembers rm
WHERE r.xar_uid = rm.xar_parentid
AND rm.xar_uid = 2'; error description is: 'Got error 24 "Too many open files" from storage engine MyISAM'.
A database query could not be executed, either because the query could not be understood or because it returned unexpected results.