Xploder SP is incompatible with Pokémon Emerald. Xploder SP targets early GBA titles (pre-2004). Emerald (2004/2005) uses a different save structure and anti-cheat checksums.
For Rare Candies on Emerald, use:
Rare Candy x99 (Slot 1): 82005274 0044Master Code (required): 0000E882 000A / 10044EC8 0007Warning: Cheat devices can corrupt your save. Backup via Pokémon Box RS (GameCube) or GBA Backup Tool before using.