Are you using a or a network/cloud license ? What version of AccuMark are you currently running? Did this happen after a recent Windows update ?

A: Windows updates can sometimes interfere with licensing drivers or security protocols. The update may have inadvertently deleted or blocked a key file that AccuMark needs to verify its license. Reinstalling the license manager or drivers usually resolves this.

Click on the tab at the top.

If using a physical USB security key, ensure it is firmly plugged in.