This is an accepted solution.
I do know that we experienced brief downtime yesterday, June 17th; however, this has since been resolved. To check if we are experiencing any downtime in the future, please head to our Shopify Status page. If you are still experiencing this error that you have shared, then please try the following:
If the issue persists, then please reach out to Shopify Support for further assistance.
While we’re not able to provide account-specific support via the Shopify Community at this time, we’d be happy to continue assisting you through live chat, email, or callback. Please visit https://bit.ly/3cJkx8V and log in to your account to create a support request.
Since this is the next step I've marked this reply as the solution for the benefit of others who may discover this topic. Thanks!