Updated to Mac OS High Sierra and can't use Vectorworks 2014. Help!

I have a (15", Mid 2012)

Processor 2.3GHz Intel Core i7

Memory 8GB MHz DDR3

Graphics NVIDIA GeForce GT 650M 512MB, Intel HD Graphics 4000 1536 MB

I decided it was time to update my software because I received a promoted message every time I turned on the computer to update or it will stop working. So I updated it to the Mac OS High Sierra and now my Vectorworks 2014 program which I use on a daily basis when I open the program, it turns black and I am not able to use it. Please help me correct this problem. I am not a computer genius and have no idea what to do and where to begin. HELP!