We encountered a problem. The reason reported was

Script: /var/www/vhosts/domain.com/httpdocs/dir/libs/ubbthreads.inc.php
Line#: 2231
SQL Error: Unknown column 't1.USER_RULES_ACCEPTED' in 'field list'
SQL Error #: 1054
Query: select t2.USER_TIME_OFFSET,t2.USER_TOPIC_VIEW_TYPE,t2.USER_TIME_FORMAT,t1.USER_DISPLAY_NAME,t1.USER_PASSWORD,t1.USER_SESSION_ID, t1.USER_MEMBERSHIP_LEVEL, t2.USER_TOTAL_PM, t1.USER_ID, t1.USER_IS_BANNED,t1.USER_IS_UNDERAGE, t2.USER_STYLE,t2.USER_HIDE_LEFT_COLUMN,t2.USER_HIDE_RIGHT_COLUMN,t2.USER_LANGUAGE,t2.USER_MOOD,t2.USER_RELATIVE_TIME,t1.USER_RULES_ACCEPTED from ubbt_USERS AS t1, ubbt_USER_PROFILE as t2 where t1.USER_ID = '2' and t1.USER_ID = t2.USER_ID

ALTER TABLE `ubbt_USERS` ADD `USER_RULES_ACCEPTED` INT( 11 ) UNSIGNED NOT NULL DEFAULT '0'