WooCommerce “Undefined error” when creating or deleting category

  • Hi,

    I’m getting an error when creating or deleting a WooCommerce product category. Also the category screen doesn’t update until refreshing the page.

    Just like this thread.

    I’ve troubleshooted and found that, for me, the problem is caused by WP Super Cache. No error with all plugins disabled, but as soon as I enable WP Super Cache the error occurs.

    Any ideas on what could be causing this?

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