It appears renaming (or removing) the /etc/.pihole directory solved the issue. After renaming it a new /etc/.pihole directory was created when running " sudo curl -sSL https://install.pi-hole.net | bash" and Pi-Hole successfully re-installed.
It appears renaming (or removing) the /etc/.pihole directory solved the issue. After renaming it a new /etc/.pihole directory was created when running " sudo curl -sSL https://install.pi-hole.net | bash" and Pi-Hole successfully re-installed.