Fix PHP application urgently

Urgently require a committed PHP expert to fix my existing e-leave, e-claim & e-payslip web application.

Kindly refer to the attached file.

E-leave, E-Claim, E-PaySlip application:-
https://stable.pcmart.info/
User name: admin
Password: 123456

Project error:-
http://project.pcmart.info/
freelancer@gmail.com
123456