Hi welcome to MCM
What year CF650 did you get?
The 2011-2014 model CFs (250-650cc) have a known issue with the Ducati ECU/ECM dying. The later model CF's ~2015+ were given a Bosch ECU/ECM which have proven much more reliable.
The Bosch isn't backwards compatible with the Ducati though.
You might find some useful info in the Street section of MCM.
Don't be shy, add some photos to your post too.