Only few followers the last weeks, but Views/Like rating ok

Hello,

in the last two weeks my Tiktok account had a massive number of new follower reduction to 1-2 per day, before it was 20-30 per day, the videos have also a good resonantion but I barely come into the for you page.

I post 2-3 vids per day but also a new video style seems not to work.

Is this probably like a shadowban? Or a algorithm issue?

Thank you and Sorry for my bad english