Get this watermark off my site! How to delete them?

There is a simple step-by-step description for this process in the documentation: https://docs.berocket.com/plugin/woocommerce-products-image-watermark#restore-images

To restore images and not watermark them again follow the steps below:

1. Disable option?Add watermark to image when it is loaded for the first time on shop page or product page in the Replace images live section.
2. Save settings.
3. Click?Restore button in the Replace images via AJAX section.
4. Wait on this page till the scripts end.