help please

the save data could not be accessed. Please turn the power off and reinsert the DS card.
this seems to appear on some of the newer games like gta chinatown , christmas carol ,ben 10 alien force all other games work fine im using r4 and super card

Read this thread.
https://www.romulation.org/forum/index.php?topic=1462.0

do i have to download dslazy and arm7 ? if so is there a link

Here's a page of AP patches. :)https://www.romulation.org/forum/index.php?topic=29845.0