Database errors

Notice: Undefined index: PHP Core in C:\wamp\www\easyinstaller_101\install\index.php on line 66
Strict standards: Only variables should be passed by reference in C:\wamp\www\easyinstaller_101\install\index.php on line 20

Database error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '?/*SQLyog Community Edition- MySQL GUI v6.51MySQL - 5.1.30-community : Databas' at line 1

Query: /*SQLyog Community Edition- MySQL GUI v6.51MySQL - 5.1.30-community : Database - db
DROP TABLE IF EXISTS `tbl_advance_book`



Database error: Cannot delete or update a parent row: a foreign key constraint fails

Query: DROP TABLE IF EXISTS `menus`

Database error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'SQLyog Community Edition- MySQL GUI v6.51MySQL - 5.0.92-log : Database - st' at line 1

Query: *SQLyog Community Edition- MySQL GUI v6.51MySQL - 5.0.92-log : Database - db
DROP TABLE IF EXISTS `ad_center_images`