Discuz! 2.2F --> Discuz!4.1

Discuz! info: MySQL Query Error

Time: 2006-6-28 5:08pm
Script: /upgrade5.php

SQL: ALTER TABLE tankadmingroups ADD allowmodpost tinyint(1) NOT NULL default '' AFTER alloweditpoll, CHANGE admingid admingid SMALLINT(6) UNSIGNED DEFAULT '0' NOT NULL, ADD allowmoduser TINYINT(1) NOT NULL AFTER allowedituser, ADD allowstickthread tinyint(1) NOT NULL AFTER alloweditpoll, ADD allowrefund tinyint(1) NOT NULL AFTER allowmassprune
Error: Invalid default value for 'allowmodpost'
Errno.: 1067

An error report has been dispatched to our administrator.

最後RUN upgrade5.php 出現的問題 怎麼辦？