hmm... I'm not expert on this one, but it may be a little mistake in the template, can you try changing:
$key = !empty($modSettings['googleMap_Key']) ? $modSettings['googleMap_Key'] : '';
to:
$key = !empty($modSettings['geoIP_Key']) ? $modSettings['geoIP_Key'] : '';
in the file geoIP.template.php?
This seems unrelated, it may be some functionality removed?
You can just change:
if ($modSettings['googleMap_Sidebar'] !== 'none')
to:
if (!empty($modSettings['googleMap_Sidebar']) && $modSettings['googleMap_Sidebar'] !== 'none')
in GeoIP.controller.php.