Referring to the wiki on save file structure and the recovery tool's output, your save file is missing critical parts of it (namely, blocks 0, 1, 2, which store your party, game progress, and trainer information). So there's not much to be able to recover besides box data.
I copied the 3 missing blocks from a donor save file (mine) and ran it through the recovery program to even out the blocks.
I don't advise trying to play the save file; only use it to recover your box data by dumping it into another save file.
Pokemon - Emerald Version (USA, Europe) (1).sav