To avoid such errors, ensure you have a physical address mentioned on the ‘Contact Us’ page. Having titles, descriptions, and availability status on your products would be best.
Please share your store URL so that I can have a look. You can also look at the article related to your issue: https://support.google.com/merchants/answer/10740889?hl=en.
If you have completed the steps mentioned, please tell me if your store is a dropshipping store. As Google often suspends such stores, getting them approved is complicated.