A change has been implemented for Supermetrics for Google Sheets to start to block simultaneous usage of a specific license. The license is meant to be for a single user, so if the same license account is open in multiple locations, you may see this error:
If you continue to use the license with simultaneous uses, the oldest open sidebar instance(s) will be closed with the error like the following:
To stop this, you will need to reduce the number of usages of the license account to one user, or purchase additional licenses for your other users so they can continue to use the product.
Do note that we offer bulk discounts for when multiple licenses are purchased - contact firstname.lastname@example.org for more details.