Scheduler with AngularJS - TypeError: t.split is not a function

I’m trying implement scheduler using AngularJS, but when i try add a event(fixed value), returned this error “TypeError: t.split is not a function”

controller.js

html

13

Console Error
28

Here you can find a demo of the dhtmlxScheduler on Angular:
https://files.dhtmlx.com/30d/0de3539d777936cff54b0f3b3dcd87f4/angular-demo.zip
If the problem still occurs for you please, provide a complete demo, where the problem can be reconstructed locally.