Need PHP, MySQL few bug fixes

Hello,

I have a website that causes a 502 error after sending a form to a database. Error is not causing the issue on the server, because when the browser cache cleared its all working fine again.

Need a freelancer who can debug quickly this and fix the issue. Please send me your PM so I can provide more details about which website it is.


Thanks.

I am web developer please contact me on pm

Work Done, Payment received, Thank you!