Unable to obtain a license to run SIMPROCESS

In the Simprocess 6 and higher, the following message could appear on start: "Unable to obtain a license to run SIMPROCESS."

In such a case it means that the license of a FLEXIm server (a part of Simprocess) expired. The only reliable way we know so far to overcome this, is to completely remove Simprocess. Don't forget backuping all your data! Then uninstall Simprocess and check its installation directory (on Windows it is most often C:\Program Files (x86)\SIMPROCESS\, but could be elsewhere). If it is still there, delete it completely.

Then reinstall Simprocess from scratch. Do not forget to obtain a new license.

There is most likely also a more straightforward solution. If you know any, please, do not hesitate to put it here.