Error "Field 'user_id' doesn't have a default value" when adding photo to Author

When trying to add photo to user at Authors > Authors > Blog Settings > Avatar the following error message occurs:

An error has occurred.

1364 Field 'user_id' doesn't have a default value

This is in Joomla 4.0.5
using
EasyBlog 6.0.2

Any idea why this would be occuring?
Thanks!
Jim