Docker Repository does not have a Release file

I am attempting to install Docker on a new installation of Zorin, which I don't believe I have had problems with before and I get the error below:

The repository ' focal Release' does not have a Release file.

I attempted to change the repository to Debian and I appear to have issues still.
Does anybody know how to fix this problem?

Update: I was able to fix the problem and install docker by first deleting all repositories associated with docker by deleting them from the apt directory, and then running the script.

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