Hi, I'm on Ubunutu 20.04 and have the same issue.
I've installed everything from the panel, but still getting the same issue. Also I tried to uninstall and install via terminal without luck.
Any solutions ?
psycopg2.errors.UndefinedFile: could not open extension control file "/www/server/pgsql/share/extension/hstore.control": No such file or directory