[Error] AI breaks when trying to strategically switch out another monster during battle [v19]

[Scraps The Man]

I was doing a double battle with a boss in my game, and I think they tried to switch out their monster for another one; however, instead of switching out, an error appeared and gave me a free turn to attack. Here is the error, if there is anything that I need to fix I would love to know! Thanks in advance, and have a good one!
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[Pokemon Essentials version 19]
[v19 Hotfixes 1.0.6]

Exception: ArgumentError
Message: comparison of Symbol with 0 failed

Backtrace:
187:AI_Switch:110:in `>='
187:AI_Switch:110:in `block in pbEnemyShouldWithdrawEx?'
187:AI_Switch:94:in `each'
187:AI_Switch:94:in `each_with_index'
187:AI_Switch:94:in `pbEnemyShouldWithdrawEx?'
187:AI_Switch:6:in `pbEnemyShouldWithdraw?'
207:PokeBattle_BattlePalace:193:in `pbEnemyShouldWithdraw?'
208:PokeBattle_BattleArena:178:in `pbEnemyShouldWithdraw?'
185:PokeBattle_AI:64:in `pbDefaultChooseEnemyCommand'
180:Battle_Phase_Command:200:in `block in pbCommandPhaseLoop'
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(I can try my best to supply any information you may need, but do know that the whole script should not have been tampered with yet!)

 

[Golisopod User]

This has been fixed. Get Essentials v19.1 along with the v19.1 Hotfixes.

 

[Scraps The Man]

Good to know! Thanks for the headsup!