Help me with No$GBA DS

I can't get the No$GBA DS emulator i just downloaded to play Pokemon Platinum which i also just downloaded. When i try to start it up, it just says" The save data could not be accessed. Please turn the power off and reinsert the DS game card." Ive tried restarting it and nothing. Im not really smart with this whole computer files thing, so if you could help me i would appreciate it.

Download this Full Package, http://www.mediafire.com/?js0l3kmi9pxigiuRun no$zoomer and try your game .

http://www.youtube.com/watch?v=kMF9W0WBu_QCheck this link out. Do not download the package from above. It'll just cause more problems and confusion.

you'd be better off using desmume, no$gba is no longer supported and hasn't been updated for years.