Cannot read properties of undefined (reading 'leave')

[Mit-Bhayani]

I'm working with the web chat and currently using the flex V2 for UI.

Whenever I try to complete the task for specifically chat that time it gives me an error on the console as given below in the screenshot.

I checked on code as I used this method while transferring the task that somehow it's been called and generated the error but this is not the case.
Also, I added an event listener for afterCompleteTask but the error is generated prior to this.

twilio-flex.min.js:609 TypeError: Cannot read properties of undefined (reading 'leave') at twilio-flex.min.js:313:82629 at twilio-flex.min.js:313:75724 at Object.next (twilio-flex.min.js:313:75829) at twilio-flex.min.js:313:74741 at new Promise (<anonymous>) at s (twilio-flex.min.js:313:74486) at e.leaveAgentFromChatInternal (twilio-flex.min.js:313:82254) at e.<anonymous> (twilio-flex.min.js:313:78504) at twilio-flex.min.js:313:75724 at Object.next (twilio-flex.min.js:313:75829) at a (twilio-flex.min.js:313:74543) (anonymous) @ twilio-flex.min.js:609 (anonymous) @ twilio-flex.min.js:244

Can anybody help me?