Can 2 have the same email?

EDIT: I decided to stay in ten_6044.

Can there be two accounts with the same email address? Can I move to another account with the same email address?

Yes, 2 accounts can have the same email address. In fact, the snap team fixed an issue with the forum not allowing the use of 2 accounts having the same email address.

What does this mean?

No more problems, so I decided to stay here.