Great question, now you have a few tools to help you, but it is somewhat a technical verification; but easy enough for most if you go slowly!
First, this specific error (during MacOS install) is most usually in relation to the "quality" of you MacOS partition. Simply, your Mac paritition has errors and sometimes it may be recoverable... Let's check this now.
1 - Boot your Mac in Recovery Mode (hold together on your keyboard -> command + R).
2 - Once loaded -> give it a moment or so, go into Disk Utility app -> you should see a menu with 4 options including reinstall your OS, get help, etc.
3 - Once in the App, you will see the drives you have on your Mac. Make sure you select the drive that holds your main paritition (usually on the top left menu). That's usually where you want to install you OS. Now in the sidebar, select the volume you wish to repair.
4 - Click the First Aid button -> Click Repair Disk.
Now if nothing seems to work (and you still get errors), you may have to recovery a broken partition using Internet Recovery or a Time Machine backup. Now that's another subject!
Respect.
Here's a great web site for futur reference : https://www.idownloadblog.com/2016/02/26/how-to-use-disk-utility-in-mac-recovery-mode/
