Mobile app displays "Failed to read local data. Please log out." What should I do?

2023-01-16 02:59:10 UTC 2023-12-07 06:26:22 UTC

This message is displayed when there is an inconsistency in the data in the device when updating the application.

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If the message appears, please tap "Log out" and login to the application again.
*When you log out, the data before the upload to the server is discarded.

If you don't know your login details, see the related article.

 Related:I can't log in. What should I do?
 https://help.teachme.jp/hc/en-us/articles/900005507706