I try sudo apt-get update on zorin os and got this error 
E:Type '–2020-10-19’is not known on line 1 in source list /etc/apt/sources.list
E:the list of sources could not be read.
How can I resolve this issue?
First, can you try using System Tools -> Software Updater and seeing how that runs?
The issue is with the entry in your first line in your sources.list file. You can remove the line as shown here: https://askubuntu.com/questions/96967/how-do-i-fix-this-e-type-is-not-known-on-line-in-source-list-update
It may be easier browsing to your sources.list file using sudo nautilus and using the superuser nautilus or just use the terminal.
Now I can’t install git on my laptop.
New error
E : package ‘git’ has no installation candidate
This might help recreate your sources.list file?
https://askubuntu.com/questions/49572/how-do-i-restore-the-sources-list-file#49575