Hello,
Static Blocks supports both https://www.8theme.com/documentation/xstore/support/static-blocks/
But if Static block was created using WPBakery paeg builder then edit it using WPBakery. If it was created using Elementor then edit it using Elementor. Just don’t try to edit the block created using WPBakery with the Elementor because you get the errors.
Regards