Error: ?Your site doesn’t include support … ?

I have installed Kadence 2.0.10 and all Kadence Blocks cause an error in the block editor:

Your site doesn’t include support for the “kadence/name-of-block” block. You can leave this block intact, convert its content to a Custom HTML block, or remove it entirely.

In the frontend everything seems to work fine, but in the block editor Kadence Blocks are not really usable given this situation.

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There appears to be a conflict of Kadence Blocks V2.0.10 with Twentig V1.3.1.

After de-activating Twentig the Kadence errors in the block editor are gone. I will notify their support too.

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