Problem Nosgba 2.6a losing save file after the rom İmage Has Crashed error

Hi guys I am playing Heart Gold on Nogba 2.6a. I have a big problem. Every 30 minutes (approximately) the error is starting. (crash) Then I close and reopen the emulator and start my game but all of my save file has gone. The game starts with first save file. But I saved when I on the 5th badge. I tried all methods but the result is always same. Please help me

Use the addon No$Zoomer. You can find the link here:
https://www.romulation.org/forum/index.php?topic=1462.0If you aren't already, make sure you are using the anti-piracy patched version. You can find the info here:
https://www.romulation.org/forum/index.php?topic=23083.0