An unhandled exception of type 'System.NullReferenceException' occurred in GHI.Premium.Hardware.dll

The problem is as picture shows, I do not know why, seems there is something wrong with my GHI.Premium.Hardware.dll?

@ andre.m -
WOW, I spent whole afternoon thinking that. You solve my problem just for one minute!!! Thank you !!!

@ andre.m -
Yes, for sure… I should have read it carefully…