TREESHA... you're NOT the only one!!1
Many, too many of us have got that error ++ others that are appearing lately with Cakewalk SONAR by Bandlab.
(Maybe is the price to pay for "FREE" something that used to cost money... I for one, PAID FOR IT and now I've had to go back to Cubase, MOTU... )
The Customer support is only via email of course and is DREADFUL!!
Answers to problems to a Computer technician and Music & Technology MBA such as... Reboot the PC... Check your Firewall...
Pls, GET SONAR Platinum back and CHARGE for it so we can complain and get answers.
Bandlab... You have made a complete MESS of a decent program with EXCELLENT Client Support.