Fatal error: Uncaught PDOException: SQLSTATE[HY000]: General error: 1722 OCIStmtExecute: ORA-01722: invalid number (ext\pdo_oci\oci_statement.c:157) in C:\xampp\htdocs\include\pdoconnection.php:50 Stack trace: #0 C:\xampp\htdocs\include\pdoconnection.php(50): PDOStatement->execute() #1 C:\xampp\htdocs\include\information.php(52): OrclDatabase->execute() #2 C:\xampp\htdocs\modules\mod_department\mod_department.php(43): deptHead('\xD8\xA7\xD9\x84\xD9\x85\xD8\xB9\xD9\x84\xD9\x88\xD9\x85\xD8...') #3 C:\xampp\htdocs\include\class.php(50): require_once('C:\\xampp\\htdocs...') #4 C:\xampp\htdocs\departments.php(33): Abusahem->getModule2() #5 {main} thrown in C:\xampp\htdocs\include\pdoconnection.php on line 50