Incorrect decimal value: '' for column 'multiplier'

I got this:

Code:

Zend_Db_Statement_Mysqli_Exception: Mysqli statement execute error : Incorrect decimal value: '' for column 'multiplier' at row 73 - library/Zend/Db/Statement/Mysqli.php:214
Generated By: Unknown Account, vào lúc 7:00 AM
Stack Trace
#0 /var/www/html/community/library/Zend/Db/Statement.php(297): Zend_Db_Statement_Mysqli->_execute(Array)
#1 /var/www/html/community/library/Zend/Db/Adapter/Abstract.php(479): Zend_Db_Statement->execute(Array)
#2 /var/www/html/community/library/Brivium/Credits/Model/Credit.php(479): Zend_Db_Adapter_Abstract->query('?????INSERT INT...')
#3 /var/www/html/community/library/Brivium/Credits/Model/Credit.php(290): Brivium_Credits_Model_Credit->_pushToTransaction(Array)
#4 /var/www/html/community/library/Brivium/Credits/CronEntry/Birthday.php(34): Brivium_Credits_Model_Credit->commitUpdate()
#5 [internal function]: Brivium_Credits_CronEntry_Birthday::runBirthdayUpdate(Array)
#6 /var/www/html/community/library/XenForo/Model/Cron.php(356): call_user_func(Array, Array)
#7 /var/www/html/community/library/XenForo/Deferred/Cron.php(24): XenForo_Model_Cron->runEntry(Array)
#8 /var/www/html/community/library/XenForo/Model/Deferred.php(252): XenForo_Deferred_Cron->execute(Array, Array, 9.9999980926514, '')
#9 /var/www/html/community/library/XenForo/Model/Deferred.php(378): XenForo_Model_Deferred->runDeferred(Array, 9.9999980926514, '', false)
#10 /var/www/html/community/library/XenForo/Model/Deferred.php(331): XenForo_Model_Deferred->_runInternal(Array, NULL, '', false)
#11 /var/www/html/community/deferred.php(23): XenForo_Model_Deferred->run(false)
#12 {main}
Request State
array(3) {
  ["url"] => string(44) "http://xyz.com/community/deferred.php"
  ["_GET"] => array(0) {
  }
  ["_POST"] => array(3) {
    ["_xfRequestUri"] => string(25) "/community/threads/41575/"
    ["_xfNoRedirect"] => string(1) "1"
    ["_xfResponseType"] => string(4) "json"
  }
}