Hey there social media strategist here, that’s completely normal, Instagram is dealing with a massive bot problem these past few months. They mess around with how sensitive their algorithm is to detect fake accounts, and every once in a while they get things wrong. If your accounts gets hit, then it takes about 7-10 days to go back to normal. I suggest you don’t upload as often until then, your content won’t reach as many people, is better to wait a few days… If you need any more help, feel free to shoot me a dm, I’d love to see what exactly triggered instagram to suspend your account!