I just renamed my project from blob-js to something else and now i cant access the site anymore.
First it only loaded the correct response on the old domain while it was renamed which is weird and then it refused to work and both the new and old domain. Both now refuse to load my page.
This sounds to me like a transient problem that would correct itself. If you go to your Glitch dashboard, can you still see the project?
If you can, then you should be able to access its live version using the project name you see there (as <project>.glitch.me). And if it doesn’t work, perhaps it’s a case for support.