Setting up proxy on TS3 client

Hi, I have Ubuntu Server which located to Germany. It will sound weird but my server host doesn’t accept clients on any other countries outside of Turkey. So I setup a TeamSpeak Bot in my Server, But I couldn’t connect it because of servers location. So I need to setup proxy on TS3 Client.

Edit; I have tried this;
nano /etc/environment
and add this text to line;
http_proxy="http://88.255.217.28:8080/" https_proxy="http://5.26.96.212:8080/" no_proxy="localhost,127.0.0.1,localaddress,.localdomain.com" HTTP_PROXY="http://88.255.217.28:8080/" HTTPS_PROXY="http://5.26.96.212:8080/" NO_PROXY="localhost,127.0.0.1,localaddress,.localdomain.com" http_proxy=88.255.217.28:8080
And this didn’t work on TS3. It only worked on
curl ifconfig.io
Output;
88.255.217.28

Please read this Article: https://support.teamspeak.com/hc/en-us/articles/360002711717-How-to-configure-the-TS3-server-to-use-an-HTTPS-Proxy-for-backend-communication

I did. But I didn’t understand anything.