MAC Draftsight Standard reactivation issues

Hi, am new to Draftsight MAC and this forum.  I am used to AutoCad on a PC.    I have purchased a subscription for Draftsight Standard which runs till this July - I do not use it very often and when I went to open it last week it asked to reactivate then tells me that it is unable to obtain a license from the server.    I have hunted all through the forum and have found plenty of solutions for PC but none really for MAC.   I have found the fact that Draftsight somewhere around the 6 month mark of the subscription asks to reactivate - I did miss that.   There is no support for Draftsight for Standard.   Does anyone have any idea where I could look for help?    Thanks   PH