WEBGL three.js website changes -- 2

I need help making changes to a WEBGL using Three.js website. The website is coded in core PHP. Specifically I would like someone to fix some existing bugs and help me make some ammendements to the existing system. Only bid if you have experience working with WEBGL using Three.js and have knowledge of web design.

I will share the changes required in freelancer chat when we talk. Thank you for your time and I look forward to hearing from you!