I am getting an error!

Hello!

I am using a theme called ShopIsle which is made by ThemeIsle. There I installed your plugins. then When I try to edit the checkout page, I am getting an error and not letting me to edit.

This is the error,

Due to the recent WooCommerce 4.0 changes it is necessary to reconfigure conditional fields. If you have conditional fields, please go to the billing, shipping and advanced sections and set conditionals relationships again.

I don’t even know what to do now… Can someone help me?

Also it is not letting me to enable or disable or edit input items… also If I add something, it is not showing…