why i am not able to comment in comment box

Answer 1

It's a bug I am also unable to comment.
Pls wait till they fix it.

Answer 2

I think this issue occurred to many users today only..
Have a look on search bar..
I found 2 to 3 users reporting this issue.
But,I don't know about this as I am not facing this bug..
Whenever,they try to fix old bugs in the updates,a new bug occurs while fixing old bugs..
In Sololearn,new bugs are occurring day by day..
Sololearn server is too weak..
https://www.sololearn.com/discuss/2398020/?ref=app
https://www.sololearn.com/discuss/2397557/?ref=app