What can cause this PHP errors on almost all Files

This morning when I open my Project, and Build, I receive this error on about 80% of my Tables.

I'm the only one working on the DB, and didn't do any changes to the DB or change any passwords for quite some time.



php error happened

Technical information
Error type 256
Error description Incorrect table name ''
URL localhost/hisportal/his_employee_list.php?page=list&menuItemId=73
Error file D:\xampp\htdocs\hisportal\connections\Connection.php
Error line 626
SQL query SELECT * FROM `` WHERE ( ( ( ( `USERNAME`='admin' ) ) and ( `TABLENAME`='his_employee' ) and ( `TYPE`='3' ) ) )

THanks
Danie