Wrong details in case of the recently created products

Hi,
Currently, there is a general sales campaign on the website since February (it is londer, than 30 days) and the plugin shows wrong details in case of new products, however it works properly in case of older products.
I tried a lot of setup, but is vain.
I can use only the shortcode version, since I use Divi template builder for porducts. The plugin is inactive momentan, because of the wrong details.
Please be so kind and help to fix the issue.
Thank you very much.