I am an independent artist and half my songs are missing from TikTok

Like the title says, I am an independent artist and only about half my songs are still on the platform. I make my own beats (for the most part) and do everything myself. 4 completely original songs I've created from scratch are no longer available when you search for them. 2 of my songs that have beats I bought the exclusive rights too and I am the only one that has the beats are not on there, and I bought them both from an independent producer who is no longer active in making music. Why is this happening?