That is not the correct way to start oh and it may give you more headaches.
I am the same as you not a programmer.
Use this image https://github.com/openhab/openhabian/releases/download/v1.6-alpha/openhabian-pi-raspios32-202007302224-git0290f04-crcd2852e99.img.xz
Edit the openhabian.conf file before you put it in pi
Use notepad on windows.
Add line
zraminstall=disable
Save and eject sd card
After putting it in pi wait for ages