DraftSight V1R5.2 activation expired - linux

Hello,

I am a linux user and since DraftSight 2015 has performacne problems, I am still using V1R5.2. This morning, I turned my machine on and DraftSight opens with error massage "This product is not licensed or has expired." - see. attached picture. After I click OK, the DraftSight shuts down.

Did anyone experienced the same problem? I am running Fedora.

I fear that this is the problem of V1R5.2 being too old and having some hard-coded date of expiration (since it's beta). I was still using the old version because the new one is supposedely unusable with anything other than small files.

Tom