I also faced such a problem when I started working with TikTok. In fact, it is very important to choose a reliable proxy service that guarantees security and stable work with accounts. Good proxies allow you to bypass blockages and do not interfere with normal activity. Here, for example, there is a cool service that offers exactly TikTok proxies https://floppydata.com/use-case/tiktok-proxy/
108,794 questions
119,261 answers
1,360 comments
7,058,505 users