Hello,
Take our apologies for the delay in answering.
If you use that plugin then disable the Sticky add to cart option https://prnt.sc/1w9902j Because plugin adds a lot of additional options and it’s not possible to show them in the nice form in the sticky panel https://prnt.sc/1w996di
If we just hide these options then the user won’t be able to add the product to the cart from the sticky panel because options are required. So, in your case, the solution is just to keep that option disabled.
Regards