Error when placing new order

Hello, first of all, congratulations on the plugin is being very useful.
I have a problem when I create a new order from the backend. I add a new order and when trying to insert the product or modify anything, the woocommerce is blocked and does not allow work.
This problem disappears when I deactivate the plugin.
Please, I have seen that in the new updates the plugin is still happening, and it is a mistake that it would be nice if it did not happen.