5: The user is not in the channel.
2: RESERVED FOR FUTURE USE
3: A timeout occurs when retrieving a member list of the channel. The current timeout is set as five seconds. The current login timeout is set as six seconds. Possible reasons: The user is in the ABORTED or RECONNECTING state.
4: The method call frequency exceeds the limit of five calls every two seconds.
1: Common failure. The user fails to retrieve a member list of the channel.