Based on the boot video it looks like the downloaded iso was corrupt as it mentions that there was an error with one of the file checksums.
We would recommend you to try downloading the Zorin OS .iso file again using the latest version of Firefox or Google Chrome without any third-party download managers (in order to avoid file corruption). You can verify whether the file has been downloaded correctly without corruption by verifying that its sha256 checksum matches the one listed after pressing the "View sha256 checksums" button here.
To verify the checksum, we would recommend you to use an app called QuickHash, which can be downloaded from here: https://quickhash-gui.org/downloads/
After opening QuickHash, please navigate to the "Files" tab and select the "sha256" Hashing Algorithm before clicking the "Select File" button to choose the Zorin OS .iso file and waiting for the checksum to be generated.