If you mean which version of RPi OS I was using, I was using the latest lite version
I'm pretty sure all of us here are using the standard Raspbian OS. Why not just give that a try?
Edit: Or was the Lite version working for you initially?
I just read your original message. You may have a bad or corrupted SD Card. Have you tried reformatting it and reloading? Or may try a different SD Card.