My Instagram account seems blocked from commenting

Hi guys, i wanna ask something about spam commenting.
I've been running multiple instagram accounts to auto commenting by hashtag for a couple days.
I set 300 sec interval between comment.
But just now all of them unable to comment. I've been stop them from auto commenting for 1 day already.
But it still the same, I'm always unable to comment. There always error message pop up duirng commenting.

Do u guys have some ideas to resolve this issue?

Stop commenting for a day or two. Also theres a limit of comments u can do a day , like 5-10 max