Mobile page problem

Remove the Gutenberg Plugin, it shouldn't be used on a live site, is always in beta for developers to test new features that may or may not make it into WP core.. That particular issue we're looking into and we'll address if its an update planned for WP :)

I did, it's gone from the moment I saw the error. Thank you so much for the support. Better to stop here or I will keep you busy for a month :)

No problems - glad we can be of help