i need to upload my colysues java script server from old github that i don't have access, to new github and to update the server

I need to upload my JavaScript server code from an old GitHub repository, to which I currently don't have access, to a new GitHub repository. the server files needs to upload to colysues server.
but they need to update.

Ideal Skills:
- Strong understanding of JavaScript and server-side programming
- Proficient in Git and GitHub
- Skilled in server maintenance and updates