custom field

OrganizationImportException after defining custom field

Hi

I'm using Bonita Community Edition 7.7.4.
I have my custom field in organization data for users. I added 3 custom fields for organization user Until now and it works correctly. When I added a new custom field (with any name), it has error and organization data can't republish.

Does anyone know what the reason of the error is?
Is there any limitation for defining custom field in community edittion?

The error log is below:

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