Hello Anuj,
The HUGO category in the database was causing a bug in MAPPFinder, so
it has been deleted from the database. If you don't have access to any
alternative annotation for your data, I would suggest using the
PathVisio program (
http://www.pathvisio.org/Main_Page) instead. You
can get the latest version as well as a tutorial on how to use
PathVisio with data on this page:
http://www.pathvisio.org/Help:Tutorial2
Regards,
Kristina