If you purchased your gloves before November 1st, 2020, you received an unlicensed dongle with your gloves. On that day Manus introduced a licensing system which requires a licensed dongle in order to use Manus Core. All the gloves purchased before November 1st, 2020 include a perpetual license. If your see this warning in Manus Dashboard (on Manus Core 1.7.0 or higher), please contact the support team.
In your ticket, attach an invoice or another proof of purchase. The support team will provide you with a file, which later on will have to be uploaded to the dongle in the Dashboard (in the Polygon tab).
If you purchased a 1 year license and it ended, after you purchase new license, it can be uploaded to your dongle in the same way.