Bot disconnect from vc randomly and throwing socketClosed event

[N1C0exe]

Im having with this version of erela.js only this little problem ( that I dont have with other lib ) : when the bot stay for a long time in vc will throw randomly the "closedSocket" event . So I tired to console.log(payload) and this is what I recive :

{"code":4006,"reason":"Session is no longer valid.","byRemote":true,"guildId":"827229827769171979","op":"event", "type":"WebSocketClosedEvent"} sometimes also the {"code":4014,"reason":"Disconnected.","byRemote":true,"guildId":"810121460932411392","op":"event","type":"WebSocketClosedEvent"} .

Any idea why this happen ?