There could be many reasons.
There could be problem with High voltage system, Battery Heater, Air Conditioning compressor, interior Heater.
Alert Code
some of possible alert code
BMS_f027_SW_Drive_Iso_Repeated
The battery management system (BMS) detects that there was a repeated loss of isolation during drive.
What could happen?
It could happen becuase of isolation issue.
How to fix
Please have a look in another guide in details (How to fix, cost etc.) Link