Videos going under review

Hello, I’ve never had TikTok ever put my videos under review until now. I’m not sure why it’s doing it but it’s sort of affecting my views. When I post it usually gets views quick but now it’s taking almost and hour to get to 1000. Some of the videos I posted before this started happening were getting attention but it all of the sudden started putting my videos under review and I’m confused. Is there any way for it to stop doing that, or why it started doing that in the first place?