Why can't I get a new Instagram?

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I had just reached 200 followers on Instagram, and it was going really good for me. One dat, I woke up to check it, and I noticed that I had been logged out. I thought "No biggie, just log back in." I trailed that, and I got a message that said "Your account has been deactivated due to violation or service and terms conditions". I thought that was odd, since I'm only 15 years old, and wasn't doing anything wrong or bad on Instagram. I tried to make a new account, but it keeps giving me the same message. I don't know what to do. I also tried to make a new account on my iPad, but it too gives me the same message. Please help. Instagram has been my addiction, and I don't know what to do. I'm also saving up for a new iPhone, and I'm wondering if I try to make a new account on there if it will give me the same message and block me forever. I'm very scared and sad. I just want my Instagram back, please.
I also got a new email and a new user name several times, but those don't work. I did not post copyrighted material or advertisements all day. I read their terms and conditions and did not violate any.