Can't run analysis for MP8796B in MPSmart

I downloaded mp8796b_mpsmart_1.rar from MPS homepage and unzip it to directory E:\Datasheet\MPS\mp8796b_mpsmart_1

I tried to open one of the existing schematics. The schematics seems shown correctly. But when I tried to run the analysis, I got the below error:

*** ERROR *** (mps_controllers.lb): Could not evaluate “TH={VREF*0.9}”

Cannot find vector of name ‘}’

Cannot find vector of name ‘{VREF’

*** ERROR *** (MP8796B_1phase_startup.net;16): Cannot open include file:

‘E:\Datasheet\MPS\mp8796b_mpsmart_1\MP8796B_v1.0.lb’

*** Warning *** (mps_controllers.lb;151297): Error : Cannot find vector of name ‘VREF’

*** Warning *** (mps_controllers.lb;151270): Error : Cannot find vector of name ‘Vref’

*** Warning *** (mps_controllers.lb;151267): Error : Cannot find vector of name ‘Vref’

*** Warning *** (mps_controllers.lb;151251): Error : Cannot find vector of name ‘Vref’

Not sure what is wrong, it sees not able to find the MP8796B_v1.0.lb file in the folder.