PMD:EoS Save problem

Hi everyone, i have a problem
I'm playing on the PMD: Expolores of Sky, and i have a problem.
I Can't save a game progress, i heard is anti-piracy fix but i dont find anything.
I Tried with a DeSume an IDeas but i don't know how tu run this emulator.I Play on the No$GBA 2.6a with Auto NDS Backup Catridge Media.(Sorry for my band english, i'm form Poland)

Try using No$Zoomer as well.
https://www.romulation.org/forum/index.php?topic=1462.0

i try it, i check what's going.EDIT:maybe i do something wrong, but when i run No$Zoomer i launch No$GBA, and i still can't save