iirc, the 'restricted logins' appears if you're BYOND banned. If you weren't directly banned, it could have been stuck on you after you logged into a bant key.
You should try filling out the support forum to contact the BYOND staff directly. Be sure to include information about exactly what happened, and anything that you believe may have triggered this. Its possible that your account could have been locked out for excessive bad password entries.
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