This might be because you have a limited account. To prevent abuse on Dribbble, basic accounts are limited from features that are reserved for Designer accounts.
Your work is only visible to you and will not be accessible from other user accounts (they will see a 404 error).
The community can’t follow you.
Your work cannot be Liked or Saved.
You’ll be unable to leave feedback on others' work or receive feedback on yours.
If you’re on a limited account and you’d like to access these features, you’re welcome to apply for a free Designer account.