Error install nethunter rootless

I followed the document NetHunter Rootless -> Installation:, after I typed the command ./install-nethunter-termux
Error occured:



Err:1 https://dl.kcubeterm.com/termux-main stable/main aarch64 libiconv aarch64 1.17
404 Not Found [IP: 28.0.3.218 443]
Get:2 https://dl.kcubeterm.com/termux-main stable/main aarch64 libnghttp2 aarch64 1.55.0 [95.3 kB]
Fetched 95.3 kB in 5s (20.4 kB/s)
E: Failed to fetch https://github.com/Termux-pod/termux...17_aarch64.deb 404 Not Found [IP: 28.0.3.218 443]
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?

I tyied to run apt-get update, it didn't work:

Ign:1 https://termux-pod.github.io/apt/termux-main stable InRelease
Ign:1 https://termux-pod.github.io/apt/termux-main stable InRelease
Ign:1 https://termux-pod.github.io/apt/termux-main stable InRelease
Err:1 https://termux-pod.github.io/apt/termux-main stable InRelease
Could not handshake: The TLS connection was non-properly terminated. [IP: 28.0.3.216 443]
Reading package lists... Done
W: Failed to fetch https://dl.kcubeterm.com/termux-main...able/InRelease Could not handshake: The TLS connection was non-properly terminated. [IP: 28.0.3.216 443]
W: Some index files failed to download. They have been ignored, or old ones used instead.