Error: Constant not found : "\Ess\M2ePro\Helper\Component\Amazon::NICK"

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Our M2E extension was working properly but now is throwing an error when we try to add/edit a "policy description"
This is causing problems with how our listings are displayed on Amazon so we need to be able to edit this part of the extension.

We are also getting the Health Status Alert:

Scheme (tables, columns)


Your current Database structure which is used in M2E Pro has differences from the database structure of the current M2E Pro version. It is not a critical issue which affect the working state of M2E Pro Module. However, if you face any unusual behavior of the Module, please, contact our Support Team via email support@m2epro.com with the detailed description of the problem you faced.

Anyone come across a resolution for this?

To recreate:
1) Amazon Integration --> Configuration --> Policies
2) Click to edit a Description Policy
3) Error: Constant not found : "\Ess\M2ePro\Helper\Component\Amazon::NICK"

Same error occurs when creating a new description policy but does not happen when creating new or editing sync or selling policies.

Thank you for any help!

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