My Instagram comments aren't working!?

[Raf]

Whenever I try to post a comment on any picture (even mine) a red exclamation point will appear telling me to try again, after I press "try again" nothing happens and the red exclamation point appears again. My captions on pictures won't even show up. This is very frustrating and the "ask a question" option on the Instagram help menu is not working right now. This has been going on for two days already and I would greatly appreciate any helpful information