Account Limit reached. You must complete your signup.
when I clicked Add a Linode,
It shows "Account Limit reached. You must complete your signup."
What's wrong with it?Help me,please!
It seems you may have not completed your signup. I would make sure that you have a credit card added to your account. Once there, you can click "Update Credit Card" and add it. Once you've done this your signup will be considered complete, and you should be able to add Linodes.
Check out this guide, for getting started
If you're still experiencing issues you can always reach out to our support team by creating a ticket.
I hope this helps!