Installation not succeed

Can anyone help me to find out this issue? I’ve tried several times to install the CyberPanel on my fresh Ubuntu Server 20.04, but it gives me error as below:

Cloning into ‘cyberpanel’…
remote: Enumerating objects: 25790, done.
remote: Counting objects: 100% (1864/1864), done.
remote: Compressing objects: 100% (784/784), done.
error: RPC failed; curl 56 GnuTLS recv error (-54): Error in the pull function.
fatal: the remote end hung up unexpectedly
fatal: early EOF
fatal: index-pack failed

git clone GitHub - usmannasir/cyberpanel: Cyber Panel - The hosting control panel for OpenLiteSpeed has failed for 1 times
Wait for 3 seconds and try again…

It starts over and over again with the same issue.