Discuz! info: MySQL Query Error

Time: 2012-1-30 9:26am
Script: /index.php

SQL: SELECT * FROM [Table]crons WHERE available>'0' AND nextrun<='1327886815' LIMIT 1
Error: User 'uzone_uzone' has exceeded the 'max_questions' resource (current value: 1)
Errno.: 1226

Similar error report has beed dispatched to administrator before.