purify chamber error

every time i try to purify a pokemon in a chamber it works until it tries to give it experience and level it up, then i get this error.

----------
Interpreter:276:in `pbExecuteScript'
Interpreter:1600: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'
Exception: RuntimeError
Message: Script error within event 3, map 101 (YabbesmillCenter):
Exception: NoMethodError
Message: Section099:653:in `pbChangeLevel'undefined method `pbRefresh' for #<PurifyChamberScreen:0xab129e0>
***Full script:
pbPokeCenterPC

Interpreter:243:in `pbExecuteScript'
PokemonShadowPokemon:39:in `pbPurify'
PokemonPurifyChamber:603:in `pbDoPurify'
PokemonPurifyChamber:598:in `each'
PokemonPurifyChamber:598:in `pbDoPurify'
PokemonPurifyChamber:565:in `pbOpenSetDetail'
PokemonPurifyChamber:639:in `pbStartPurify'
PokemonPurifyChamber:627:in `loop'
PokemonPurifyChamber:650:in `pbStartPurify'
PokemonPurifyChamber:1108:in `pbPurifyChamber'

Interpreter:276:in `pbExecuteScript'
Interpreter:1600: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'
_____

I have no idea what to do, can anybody help?
Also please detail where i have to paste what in the script section, thank you.

Alternatively if anybody knows where i can get the full script for the shadow pokemon chamber and purify chamber and just replace my old code with it, that would for to