Comment or reply doesn't work on Dtube with windows 10 google Chrome

Expected behavior

Write here the details of the behaviour you were expecting when encountered this bug.
Write a comment or reply for a video

Actual behavior

Write here the details of the behaviour that you are experiencing as a bug.
I press on add the comment or reply to a comment and nothing happends

How to reproduce

Write here every possible detail to reproduce the bug.
Just open @Dtube on google chrome and try to add a comment

• Browser: google chrome Version 63.0.3239.132
• Operating system: Windows 10 and same on MAC OS