The Mom Store review for Google & YouTube

Over the last 2 weeks 446 of our produts have been disapproved for the reason 'Product price does not match the price on your product landing page' We have not changed any pricing, and it is the same campaign which was working perfectly for us two weeks prior. We have submitted the Google Site map again, contacted Google Ads support, Shopify support, but not been able to resolve the issue. It doesn't even indicate how to solve the issue. Few weeks back we were ranking high on Google Shopping Listing Ads for several keywords, and now even though we have put in sufficient budget, our presence is reduced and products disapproved for no apparent reason. Please help immediately.