Inquiry about error dialog

While developing using MeetingSDK, I am checking for error cases. I confirmed that the following Error dialog appears when a network error occurs during a meeting.
“Cannot connect to our service, please check your network connection and try again. Error code: 104101”
The meetingStatus confirmed in onMeetingStatusChanged() was MEETING_STATUS_FAILED, errorCode was 1, and internalErrorCode was 0. I am curious how to match this errorCode with the error code displayed in the dialog. Also, I want to know where the error dialog below appears, and whether I can change the format of the dialog.

Which version?

I’ve set the MeetingOptions.no_meeting_error_message = true, but still occus dialog msg. Let me know how to prevent the error dialog from appearing.
I confirmed that other meeting options worked well. For example, no_video, no_bottom_toolbar …etc.