Agora.io Flexible Classroom roleType and Chat errors

Question

I have few issues regarding the use of flexible classroom sdk version: https://download.agora.io/edu-apaas/release/edu_sdk_1.1.5.10.js

1. Facing the following error when i change the "roleType", Currently only option 4 is working if i change it to 0 or 2, get following error:

   Unknown error occured. Code: 30409104 Details: roomType conflict.

2. Chat is not working(either on teacher or student or anyone.

   Uncaught SyntaxError: Unexpected token u in JSON at position 0 at Object.parse () at edu_sdk_1.1.5.10.js:489:2135392 at r.handleKeyDown (edu_sdk_1.1.5.10.js:418:557191) at Object.Fe (edu_sdk_1.1.5.10.js:465:16071) at He (edu_sdk_1.1.5.10.js:465:16225) at edu_sdk_1.1.5.10.js:465:34152 at Er (edu_sdk_1.1.5.10.js:465:34246) at Ir (edu_sdk_1.1.5.10.js:465:34660) at edu_sdk_1.1.5.10.js:465:40308 at Le (edu_sdk_1.1.5.10.js:465:116015)

My config is as follows:

AgoraEduSDK.config({
  // Here pass in the Agora App ID you have got
  appId: '',
})
AgoraEduSDK.launch(
  document.querySelector("#root1"), {
    // Here pass in the RTM token you have generated
    rtmToken: "",
    // The user ID must be the same as the one you used for generating the RTM token
    userUuid: "mynewt",


    userName: "Teacher",
    roomUuid: "abcdefgh",
    roomName: "demo-class",
    roleType: 1,
    roomType: 4,
    pretest: false,
    language: "en",
    startTime: new Date().getTime(),
    duration: 60 * 30,
    courseWareList: [],
    listener: (evt) => {
      console.log("personal events", evt)
    }
  }
)

Maybe some errors from the sdk built in. I need to resolve these 2 issues so that i can continue to implement it on my LMS.