How can I send messages in the Discord Server?

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I've recently authenticated my Discord account, but I can't send text messages, the site says that I don't have permission to send a text in the DT server. Any solutions?
You're not verified in our Discord Server:

Your account is however registered with the account MultiFan#2760. If you've changed your account, go to the Discord page on our site. Remove your authentication and re-sign in with Discord.