cannot enter block section

I cannot enter the block section so i can check all blocks in the theme

This is the error the button copies:
TypeError: Cannot use ‘in’ operator to search for ‘color’ in false
at https://c0.wp.com/c/6.8.3/wp-includes/js/dist/blocks.min.js:12:37961
at Array.forEach ()
at https://c0.wp.com/c/6.8.3/wp-includes/js/dist/blocks.min.js:12:37897
at s (https://c0.wp.com/c/6.8.3/wp-includes/js/dist/data.min.js:2:11890)
at Proxy.r (https://c0.wp.com/c/6.8.3/wp-includes/js/dist/data.min.js:2:15350)
at https://c0.wp.com/c/6.8.3/wp-includes/js/dist/block-editor.min.js:21:136664
at https://c0.wp.com/c/6.8.3/wp-includes/js/dist/data.min.js:9:2045
at __unstableMarkListeningStores (https://c0.wp.com/c/6.8.3/wp-includes/js/dist/data.min.js:2:20599)
at Object.__unstableMarkListeningStores (https://c0.wp.com/c/6.8.3/wp-includes/js/dist/data.min.js:2:20857)
at p (https://c0.wp.com/c/6.8.3/wp-includes/js/dist/data.min.js:9:2010)