Hello,

Maybe you are using a custom layout of themes. Try to use a Off Canvas Columns button for mobile in the layout.

You should have 2 columns and one of them should have the “Column role for off-canvas layout” option.
Please read the below documentation about it:
https://xtemos.com/docs-topic/custom-off-canvas-sidebar/

Further, you can read more about the Layout Builder here: https://xtemos.com/docs-topic/woodmart-woocommerce-layout-builder/

Best Regards.