You don't fix it. You pivot. Search for "forks." When a repo is deleted, other users who previously copied ("forked") the code still have their own version at their-name.github.io/game .
It seems you are referring to the widespread phenomenon of "Unblocked Games" websites, specifically those hosted on (often denoted by the github.io domain). unblocked games githubio work
GitHub Pages ( github.io ) is a hosting service for static websites. Gaming enthusiasts use this platform for several strategic reasons: You don't fix it
Within 2-3 years, static content blocking will become so aggressive that even github.io will be neutered. The next frontier will be P2P web gaming (WebRTC) and local HTML files saved to USB drives. unblocked games githubio work
You can use this as a draft or study guide.