Are you receiving this error when searching for a location or adding a new store?
Are you using Google API?
If so, then you may need to go back into your Google API Key and ensure that billing has been accepted.
Google will give you one free search then require any charges to be accepted.
This does not mean you will be charged, just that they need this to activate the account.
https://cloud.google.com/maps-platform/pricing/#billing
Below is a link to Frequently Asked Questions about this:
https://cloud.google.com/maps-platform/pricing/#faq