Hi – I’m getting the same error, even when my only active plugins are Gutenberg/Atomic blocks. The grid loads when you first create the block, but as soon as you click to access settings, the error replaces the loaded grid.
Using theme “fresh” from restored316 on Genesis.
Usual active plugins are: all in one seo/AMP/genesis enews extended/gutenberg/simple social icons/site kit by google/smash balloon IG feed/WP recipe maker.
New to WordPress, thanks for your help.
