After an issue with two plugins, I deactivate all my plugins and theme and I discover User Role Editor has a conflict with a Stripe gateway and a price grid plugin form the same developper.
I wrote to the plugins developper and they kindly sent me this solution below :
“Indeed, access to some pages of the plugin is limited to admin and editor default roles. However, I believe you can let any user role to access products by giving them manage_options capability via User Role Editor plugin.”
The problem is I don’t know how to achieve this…
And I ‘m not sure it’s a real solution… Seems to be more deep !
I think your help is welcome !