Why does your save file of golden sun the lost age keep disappearing?

Your save file of Golden Sun: The Lost Age might keep disappearing due to a few common issues. One possibility is that the battery in your Game Boy Advance cartridge is dying, which is responsible for saving game data. Another reason could be improper shutdowns or power interruptions while saving, which can corrupt the save file. Lastly, using an emulator or flashcart can sometimes lead to compatibility issues that may affect save stability.