error: maximum recursion depth exceeded

[clusterzx]

Following error occurs while updating the signatures via the webpanel.

Exception insert_scanner
{'plugin_type': <PLUGIN_TYPE.AV: 1>, 'has_internet': 0, 'speed': 0, 'plugin_type_value': 1, 'e': RecursionError('maximum recursion depth exceeded while calling a Python object',), 'name': 'McAfee', 'self': <multiav.webapi.CDbSamples object at 0x7f6a9a9a12b0>, 'signature_version': '20210118', 'engine_version': '20210118'}
maximum recursion depth exceeded while calling a Python object
webapi: update complete

It has something to do with the insert to the database. Even no modules are shown in the main page of the webpanel.