Why can't I follow anyone in Instagram? It's been 5 hours?

I've followed 100 people and then unfollowed them and now I can't follow anyone! This usually happens to me for like 20 minutes then it goes back but what's wrong with it? I've restarted the app, I've even tried my account on another iPhone and I still can't follow anyone. However, I can still unfollow. Help me? I'm only following 2 people right now and I have 80 followers. I don't wanna delete it.

It's happening with my phone too I'm getting it fixed at a phone repairs cotton

  • Why won't it let me follow this person on Instagram? Well I'm trying to follow this person on Instagram and it won't let me. I'll would click follow, then it will say following for a second, then it would go back to say follow. This person did follow me and I asked them if they blocked me and they said no. I'm doing this on my iPhone 5 and I tried it on my old galaxy s1 and it did the same thing. I'm only following 101 people and I really need help.
  • Why won't instagram let me follow anyone? - 1 It keeps turning to following(green) or requested(grey) I don't know what to do. I've tried deleting the app turning off my phone leaving it for a couple of hours and it's really getting on my nerves (answers please by the way I have a iphone 5c if that helps).
  • Why is my instagram not letting me follow anyone? I've deleted the app, re-installed it, turned my phone off and on, log out and log in. I don't know what's up! I have a iphone 5.
  • Why can't i follow anymore people on instagram? Okay, so i'm following 14 people and i have 127 followers. I started this morning. I press the following button, it turns green for 1 second then it goes back to blue right after. But when i logged into my other account it lets me follow people and I follow 600 people. Help ME HOW DO I FIX THIS. I tried waiting, re-installing, waiting and restarting my iphone 4. Please Help ME. And i tried contacting instagram but i have no idea how.