PHP School Maagement Script Repuleorts fixing and Updating the SMS mod

I have School School Management Script with me Which is developed in php and mysql. It have some issues in fee module. it is not showing reports perfectly. 1. You have to fix all fee reports. 2. while adding fine and submitting thats it says that you shouldnot enter more then total amount 3. student fee card, classwise report 4. search for old balances it would behave 2-3 hours work for PHP expert please don't bid new freelancers. Experienced person can do this. you should complete this work in 1-3 days. serious bidders only bid. thankyou