What function is throwing deprecation error?

Hi @randomlygenerated ,

Thanks for reaching out!

The error message indicates that somewhere in your codebase, a function is calling the offsetSet method on an object of type WC_Order_Item_Product. This method has been deprecated since version 4.4.0 of WooCommerce.

It is possible that the deprecated function is being called by a third-party plugin or theme you are using. In this case, I’d suggest performing a full conflict test to find the culprit.

The best way to determine this is to temporarily switch your theme to Storefront and disable all plugins except for WooCommerce.

Check if the issue is present at this point, if not it means there was a conflict, and you can reactivate the theme and plugins one by one (gradually) until the cause of the issue is found.

You can find a more detailed explanation of how to do a conflict test here.

If you still need further help with this, please share a copy of your sites System Status Report, so that we can have a better understanding of your sites current environment.

You can find this by navigating to WooCommerce → Status. Select Get system report and then Copy for support.

Cheers!