Megaman Star Force 2 - Not working?

Yeah, I was trying to run it on my R4, but it won't work, I keep on getting this " Cannot Read Data; Re-insert data card " error.

did you extract it from the rar file?

Yes

Backup type, read the "Common Issues" sticky.

IF YOU ARE USING NO$GBA2.6a u should go backup catridge media and set it to auto mode! ;)

He is trying to play it on a flashcart, the R4.