Shopify is reporting an error on their end that some merchants are currently unable to access parts of their Shopify Admin. They have identified the issue and are working on a solution. You can find more details by visiting their status page here: https://www.shopifystatus.com/incidents
Posted Apr 06, 2021 - 17:53 UTC
This incident affected: Shopping Carts and Marketplaces (Shopify Admin).