Hi,
Try to upgrade the gamification module of odoo and see if it makes any difference.

Thanks

Hi,

This error indicates a problem with the 'karma' field in the 'res.users' model, which is related to the user administration.

1. Try to upgrade the custom module where you added the field 'karma'.

2. Review the Python code for your custom module or any modifications you made to the 'res.users' model. 

Ensure that the 'karma' field is properly defined in the Python code and that its data type matches the field type defined in the XML view. 

Hope it helps