LMS Website Overhaul and Bug Fixing

Website is already ready but there are bugs in it. I want to fix bugs in website and admin panel. It is a LMS website of a Competitive exam coaching institute. Uphill today the website has videos, notes and test series... (Budget: ₹1500 - ₹12500 INR, Jobs: Content Management System (CMS), Graphic Design, HTML, MongoDB, PHP, UI / User Interface, Web Development, Website Design, Website Optimization)