Running the install script isn’t difficult. Worth doing, if not, take a snapshot anc backup all your yaml and take the opportunity to move to Debian 10.
sudo -i
curl -sL "https://raw.githubusercontent.com/Kanga-Who/home-assistant/master/supervised-installer.sh" | bash -s
Wasting time putting band-aids on an unsupported installation is only kicking the can down the road.