problem with Draftsight on MacOs 10.6.8

Hello,

I used Draftsight (the free version) on MacOs 10.6.8 on a MacBook some times. Now it won't open and an error message told me to download the newest version. Unfortunately the newest version doesn't open but shows a new error message saying that this version won't work on this operating system.

My question is: is Mac Os 10.6.8 really already too old for Draftsight?

Is there anything I can do to return to draw with Draftsight as I did until now?

Thank you very much for your help