wuut.ai error

-- act_wuut_ai:initialize(sim_default_military_019561)
act_wuut_ai:execute() state: patrol
sim_default_military_019561 timer: 10000 with action init
-- active
-- allies_count 2
-- PANIC:19561
ET 1
ET 2
ET 3
ET 4
! [LUA] SCRIPT RUNTIME ERROR
! [LUA] c:/anomaly\gamedata\scripts\wuut_ai.script:420: attempt to index local 'mem_wState' (a nil value)
! [SCRIPT ERROR]: c:/anomaly\gamedata\scripts\wuut_ai.script:420: attempt to index local 'mem_wState' (a nil value)

FATAL ERROR

[error]Expression    : <no expression>
[error]Function      : CScriptEngine::lua_error
[error]File          : ..\xrServerEntities\script_engine.cpp