Failed to start tunnel

[puviyarasantech]

I have all configuration with Twilio But getting error when create publicServerUrl ngrok .connect(8080) .then((url) => { console.log("==================?",url); new IvrTester({ ...config, publicServerUrl: url }) .run(call, scenarios) .then(() => process.exit()) .catch(catchError) }
) .catch(catchError);

{ error_code: 103, status_code: 502, msg: 'failed to start tunnel', details: { err: 'remote gone away' } }