Not possible edit page using Firefox browser and Gutemberg

Hello,

We’re having issue on the following page https://www.designlights.org/ about a week ago we are not able to edit any page beacuse the Gutemberg editor y not loading any page (please check screenshot https://prnt.sc/1xqnejz) the errors that we are having on the console are the following (screenshot: https://prnt.sc/1xqnodr)

We have tried by disable all the plugins and changed the theme but none of those works.

Any advice on this?

Thanks.

The page I need help with: [log in to see the link]