Tried disabling plugins. didnt work.
if i do inspect. it gives below error after clicking on button.
tutor-front.js?ver=1.9.1:789 Uncaught TypeError: Cannot read property 'split' of undefined
at feedback_response (tutor-front.js?ver=1.9.1:789)
at HTMLButtonElement.<anonymous> (tutor-front.js?ver=1.9.1:607)
at HTMLDocument.dispatch (jquery.min.js?ver=3.5.1:2)
at HTMLDocument.v.handle (jquery.min.js?ver=3.5.1:2)
https://imgur.com/a/I7MnBcX