Hello,
1/ Make sure that not all your categories are empty https://prnt.sc/bbdbQ20QBsTz
Theme Options > WooCommerce > Shop > Products style > Product Content Elements > enable categories
2/ Enable Elementor editor for the Static blocks https://xstore.helpscoutdocs.com/article/47-static-blocks
After that go to Static Blocks and edit the Shop banner static block using Elementor.
Regards