I can't FOLLOW Friends anymore !
At the present, I can't follow anybody here. Whenever, I press the button Follow, it suddenly came back Follow again although I followed them. Why, please give me the reason ?
That might just be a glitch...I really don't know how to fix it, but maybe you can report it? https://support.duolingo.com/hc/en-us/articles/204728264-How-do-I-report-a-bug-
I guess it's just your account, because I have never heard of this happening before.