you are assigning an undefined state

[Qlink84]

javascript.0	2022-03-03 07:25:55.954	warn	at processImmediate (internal/timers.js:464:21)
javascript.0	2022-03-03 07:25:55.954	warn	at Immediate._onImmediate (C:\iobroker\iob01\node_modules@iobroker\js-controller-adapter\src\lib\adapter\adapter.js:5909:56)
javascript.0	2022-03-03 07:25:55.954	warn	at Object.stateChange (C:\iobroker\iob01\node_modules\iobroker.javascript\main.js:530:29)
javascript.0	2022-03-03 07:25:55.954	warn	at Object.callback (C:\iobroker\iob01\node_modules\iobroker.javascript\lib\sandbox.js:1082:38)
javascript.0	2022-03-03 07:25:55.954	warn	at Object. (script.js.Timer_Script_2_2_0:1240:21)
javascript.0	2022-03-03 07:25:55.954	warn	at setState (C:\iobroker\iob01\node_modules\iobroker.javascript\lib\sandbox.js:1437:20)
javascript.0	2022-03-03 07:25:55.938	warn	You are assigning a undefined to the state "javascript.0.Timer.Template.SwitchTargetSmartName" which expects a string. Please fix your code to use a string or change the state type to undefined. This warning might become an error in future versions.

[Pittini]

More information please.