My tiktok account went haywire

Today I restarted my phone and when I got back on tick tock it wanted to confirm my birthday. I wrote down my birthday and it asked me if I was only one year old that my birthday was today. Before that it said that I was in eligible to post videos when I got my account like 9 months ago. So now it shows up as a private account all my videos are deleted and I can't switch back to public account. I can't log in with my phone number email or password. Won't let me watch videos. I feel locked out. Am I hacked did I said when I logged instead of zagged?