Sega Superstars Tennis help

I just dled the rom of Segasuperstar tennis on romulation, but both of them arent working on my ds.. any help? It says "ERROR couldnt read the data, lpease turn off your ds" >.<and ps: is the rom of ff XII revenant wings has been released?

see posthttps://www.romulation.org/forum/index.php/topic,5951.0.html