Not sure if that's the case as I'm not doing tik tok + cpa, I'm not doing anything with tiktok at all tbh. But, that's what comes with using popular methods.. they dry up quickly. You have to think how many people visit this site daily, and how many people had no ways of earning money prior to sseeing all these tiktok + cpa threads... that motivates all them people to try that one method, as they see it's working for everyone else. So now you have hundreds of people attempting the same method daily.. it's only natural that the platform will fight back, and attempt to shut it down.
I doubt they've shut it down already, but I would definitely prepare yourself for that to come in the near future. This way you will have a backup method, for when that one drys up. This is why private methods are much better then public methods. But I get it, everyone has to start somewhere. So make the best of the opportunity while it's still around, put funds up to invest in other methods. Good luck.