Installed it on Vanilla Xenforo 1.1.3:
Server Error
Mysqli prepare error: Table 'ionbyteg_xenforo.merc_user_task' doesn't exist
Zend_Db_Statement_Mysqli->_prepare() in Zend/Db/Statement.php at line 115
Zend_Db_Statement->__construct() in Zend/Db/Adapter/Mysqli.php at line 381...