Hello! It shouldn't be an issue, as the developers on the main server (the server that most TikTok Live games connect to) haven't made any statements about it. There’s no reason why it should be.
Perhaps you've tried reconnecting too many times in a short period, causing your IP address to be temporarily blocked. The main server flags this as potential spam to prevent DDoS attacks, and it may "block" your IP temporarily. Try using a VPN (if you don't have one, free options like ProtonVPN work well) to test it out, or you can try connecting with a different internet provider (or mobile data). Alternatively, you could just wait a bit for the server to unblock your IP address.