Megaman starforce

i have a r4 and i just downloaded Megaman Starforce Leo and put it in to the r4 and when i started the game and black screen appeared and a message came out and stated "Can not read game card please off and reinsert the game card" and so i did that and their is still this problem. Can anyone help me please i really like to play this game.

Read the "Common Issues" thread in the Technical Help section.

i have also tried the other starforce Pegasus and Dragon but both still has the same problem with leo can someone please help it would really help alot. :)

read the 'common issues' thread like seph said above.