install zerotier on IOT2050

hello,i want to install zerotier on IOT2050 running linux debian.i did as the link.at first step,can’t do it.please assist me?การเชื่อมต่อ VPN ให้กับ IOT2050 ด้วย ZeroTier – Automation 360

Linux installation instructions can be found on the download page

Initially, I tried to follow the above installation commands on the download page but could not do it. The next day, I reopened it and installed. However, my PC was installed with zeroties after I did not install it. get zeroties on IOT2050. maybe need to install zerotier first on PC before installing zerotier on the device to use