Battle Factory pbPrepareRentals error

[xTHx]

Hey guys ^.^

I have a bug and I need help to fix it.
In the Battle Factory, when the rental pokemon are starting, the game are making an error and closing. This error are in the Essentials since the system launched and I don't see nobody trying to fix it. This are the error:

Spoiler:

---------------------------
Pokemon Essentials
---------------------------
Exception: RuntimeError

Message: Script error within event 1, map 63 (Battle Factory intro corridor):

Exception: NoMethodError

Message: (eval):1:in `pbExecuteScript'undefined method `pbPrepareRentals' for nil:NilClass

***Full script:

pbBattleChallenge.extra.pbPrepareRentals


Interpreter:243:in `pbExecuteScript'

Interpreter:1606:in `eval'

Interpreter:243:in `pbExecuteScript'

Interpreter:1606:in `command_355'

Interpreter:494:in `execute_command'

Interpreter:193:in `update'

Interpreter:106:in `loop'

Interpreter:198:in `update'

Scene_Map:103:in `update'

Scene_Map:101:in `loop'



Interpreter:276:in `pbExecuteScript'

Interpreter:1606:in `command_355'

Interpreter:494:in `execute_command'

Interpreter:193:in `update'

Interpreter:106:in `loop'

Interpreter:198:in `update'

Scene_Map:103:in `update'

Scene_Map:101:in `loop'

Scene_Map:114:in `update'

Scene_Map:68:in `main'



This exception was logged in

C:\Users\part\Saved Games/Pokemon Essentials/errorlog.txt.

Press Ctrl+C to copy this message to the clipboard.
---------------------------
OK
---------------------------

If Someone can help me with that, I 'm a fan of that person.
Sorry if that are the wrong area and sorry for the bad english.