title: Can't execute query: BIGINT UNSIGNED value is out of range
body: <p>following error after start sheduled cron job for every 10 min : </p>
  
  <pre><code>Output from command /usr/bin/php -q /var/www/html/mydomain/_cron/cron.php ..
  
  PHP Notice:  Can't execute query: BIGINT UNSIGNED value is out of range in '(`karsi_jiggo`.`user`.`hide_time` - 10)'
  UPDATE user SET hide_time=(hide_time-10), last_visit=last_visit WHERE hide_time&gt;0 in /var/www/html/MyDomain/_include/lib/db.php on line 100
  
  Notice: Can't execute query: BIGINT UNSIGNED value is out of range in '(`karsi_jiggo`.`user`.`hide_time` - 10)'
  UPDATE user SET hide_time=(hide_time-10), last_visit=last_visit WHERE hide_time&gt;0 in /var/www/html/MyDomain/_include/lib/db.php on line 100
  </code></pre>