Dear Sir/Madam,
I have +5 years developing PHP, MySQL, REST APIs and JSON, Javascript , CSS And HTML. So I think I can help you fix it so quickly
I can do fix it for you but I need to know more about your project so feel free to PM me before accepting the offer.
Also feel free to PM me if you have any questions. I will be glad to answer you :)
Kind wishes,
Mahdyar.