Hi. I tried to install pi hole on Banana Pi M1 running Raspbian with no luck. Basically i ran into issues right at installing. I typed curl -sSL https://install.pi-hole.net | bash to install it (with root access). I shot a screenshot at Screenshot by Lightshot so please,check it out and tell me what's wrong.
That is an issue with the operating system and not something that we can fix with Pi-hole. You'll need to contact the creator of your OS and ask them for further guidance.