What does your PBS Pokemon.txt look like?
An argument error usually tells you wether you have the right amount of "arguments" or things after a comma, in your case, 0 out of 3... Which is wrong in any case
[704]
Name=Goomy
InternalName=GOOMY
Type1=DRAGON
BaseStats=45,50,35,55,75,40
GenderRate=Female50Percent
GrowthRate=Slow
BaseEXP=60
EffortPoints=0,0,0,0,1,0
Rareness=20
Happiness=35
Abilities=SAPSIPPER,HYDRATION
Moves=1,TACKLE,1,BUBBLE,5,ABSORB,9,PROTECT,13,BIDE,18,DRAGONBREATH,25,RAINDANCE,28,FLAIL,32,BODYSLAM,38,MUDDYWATER,42,DRAGONPULSE
EggMoves=ACIDARMOR,COUNTER,CURSE,ENDURE,IRONTAIL,POISONTAIL
Compatibility=14,14
StepsToHatch=10240
Height=0.3
Weight=2.8
Color=Purple
Habitat=Forest
RegionalNumbers=0,46
Kind=Soft Tissue
Pokedex=It's covered in a slimy membrane that makes any punches or kicks slide off it harmlessly.
BattlerPlayerY=0
BattlerEnemyY=27
BattlerAltitude=0
Evolutions=SLIGGOO,Rain,40
[705]
Name=Sliggoo
InternalName=SLIGGOO
Type1=DRAGON
BaseStats=45,50,35,55,75,40
GenderRate=Female50Percent
GrowthRate=Slow
BaseEXP=60
EffortPoints=0,0,0,0,1,0
Rareness=20
Happiness=35
Abilities=SAPSIPPER,HYDRATION
Moves=1,TACKLE,1,BUBBLE,5,ABSORB,9,PROTECT,13,BIDE,18,DRAGONBREATH,25,RAINDANCE,28,FLAIL,32,BODYSLAM,38,MUDDYWATER,42,DRAGONPULSE
EggMoves=ACIDARMOR,COUNTER,CURSE,ENDURE,IRONTAIL,POISONTAIL
Compatibility=14,14
StepsToHatch=10240
Height=0.3
Weight=2.8
Color=Purple
Habitat=Forest
RegionalNumbers=0,46
Kind=Soft Tissue
Pokedex=It's covered in a slimy membrane that makes any punches or kicks slide off it harmlessly.
BattlerPlayerY=0
BattlerEnemyY=27
BattlerAltitude=0
Evolutions=