Error!: SQLSTATE[HY000] [1049] Unknown database 'it_logs'

Fatal error: Uncaught Error: Call to a member function exec() on null in W:\html\php\CLib\SQL\CrnlPDO.php:238 Stack trace: #0 [internal function]: CLib\SQL\CrnlPDO->query() #1 W:\html\php\CLib\SQL.php(73): call_user_func_array() #2 W:\html\php\CLib\SQL.php(99): CLib\SQL->__call() #3 W:\html\php\CLib\Form.php(75): CLib\SQL->query() #4 W:\html\php\CLib\Framework.php(125): CLib\Form->__construct() #5 W:\html\public\404\includes\framework.php(41): CLib\Framework->init() #6 W:\html\public\404\index.php(18): CLib\CornellFramework->init() #7 {main} thrown in W:\html\php\CLib\SQL\CrnlPDO.php on line 238