If you receive this message, an update of the certified time of your license key might be necessary.
CODEMETER
Search for and open CodeMeter on your machine. Go to WebAdmin.
Once you're in CodeMeter WebAdmin, go to Container(1) > CmContainer Info(2).
Next, click on the Update button(3) to the right of Certified Time (CmContainer).
After this, you can open License Manager Tool (LMT) and download your license key.