Answer:
If you are using a real computer with the Windows operating system and there have been no hardware changes and/or new installation of the operating system, the license problem is usually caused by the following:- The mandatory service "Sentinel LDK License Manager" may be damaged after a Windows update.
- The antivirus program blocks the hasplms.exe file.
- Other security software (for example, Sandboxie) prevents proper communication of the license service.