Hello Julie,
I logged in and had a looked at the issue.
The problem is present with all Widgets. Not just the ones for Integral.
The button “enregistre” isn’t clickable.
I activated another theme and the problem persists.
So the issue must be with your installation of WordPress or a conflicting plugin. However, you don’t have any plugins enabled.
I would contact your hosting company to ensure it meets the WordPress requirements.
I hope that helps.
