Gridder - page not accessible

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Hi Marius
I updated my theme yesterday while working on my website. Now I can't modify my pages, categories and projects anymore.
I don't know if the problem is coming from Laytheme or Wordpress which I also updated. Can you help me out? Many thanks best Sarah

Dear @travelingrabbit
try to deactivate YOAST. We have issues right now with this plugin.

Best!

Marius

@mariusjopen Yes, that's it! Thanks.