From another thread:
Robert "Hvinire" Peeler - Community Team
Hello everyone,

Since the conclusion of this morning's maintenance, the development team has addressed an issue causing the aforementioned 3102 error for many players. We are also now assisting the affected users and will follow-up once the process has been completed.

While we appreciate the assistance in providing your character names and Worlds, this information is not needed to resolve the issue. Thank you for your patience as we do our best to ensure everyone can log in and play.
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