When I try to make a project on normal Scratch, it won't save.

Duplicate of a duplicate of a duplicate of a duplicate of a duplicate of a duplicate of a duplicate of a duplicate of a duplicate of a duplicate. . (one of the posts is yours, I posted this on all of the duplicates. (Stupid sixty second rule won't let me do it in under 10 minutes hehe)

You will see this error when there are issues with networking - either on your end or on ours. Recently, it was on our end. Hopefully, it is now fixed