Double Battles for trainers don't work

Alright so I'm pretty annoyed because i just simply cant get double battles for trainers to work. I even copied the double battle trainer in route 3 and it doesn't even work, its just a regular old single battle. I have a section of my game where you team up with someone and then if you go in a wild battle then 2 pokemon appear instead of one. But if you battle a trainer its just a single battle. Heres my trainer script:


Edit: I just tested the double trainer battle in an unedited version of pokemon essentials, it works there but not in my game. I have elite battle system 4 as well as gen 6 and 7 pokes but I have no idea if that has anything to do with it.

Edit 2: Ok i fixed it, i just pokebattle_battle from the unedited pokemon essentials and now it works fine :)

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Pokemon Essentials
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[Pokémon Essentials version 17.2]

Exception: RuntimeError

Message: Script error within event 6 (coords 20,60), map 33 (Dawn Town):

Exception: RuntimeError

Message: EBS Battle Script:138:in `pbStartBattleCore'Opponent trainer must be only one person in single battles

***Full script:

pbDoubleTrainerBattle(:LASS,"Sally",1,_I("PiePie nooooo!!!"),:BEAUTY,"Lilly",2,_I("How could my Stingie lose...!!!!"),true)

Interpreter:243:in `pbExecuteScript'

PokeBattle_Battle:2340:in `pbStartBattle'

PField_Battles:373:in `pbDoubleTrainerBattle'

PField_Battles:372:in `pbSceneStandby'

PField_Battles:374:in `pbDoubleTrainerBattle'

PField_Battles:371:in `pbBattleAnimation'

PField_Battles:371:in `pbDoubleTrainerBattle'

(eval):1:in `pbExecuteScript'

Interpreter:794:in `eval'

Interpreter:243:in `pbExecuteScript'



Interpreter:276:in `pbExecuteScript'

Interpreter:794:in `command_111'

Interpreter:320:in `execute_command'

Interpreter:193:in `update'

Interpreter:106:in `loop'

Interpreter:198:in `update'

Scene_Map:163:in `update'

Scene_Map:161:in `loop'

Scene_Map:170:in `update'

Scene_Map:234:in `main'



This exception was logged in

C:\Users\Owner\Saved Games\Pokemon Essentials\errorlog.txt.

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OK
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What am i doing wrong?