bunaziua since TikTok's code is proprietary, there's a possibility that they have shadow banned you for some reason. We can only speculate as to how they determine whether to shadow ban an account. Maybe you used a throwaway phone number, or an email alias instead of your real email, or they detected your phone doesn't have Google Play, or they detected your phone is running a non-standard OS. Could be all sorts of reasons.
My suggestion would be to see if you can contact some sort of support team on their end to see if they can offer any support or clarity.