Marker Cluster options have no effect

Hello,

Something changed with my map and marker clustering. It was working fine previously but now the cluster options seem to have no effect. Changing the default cluster options on the “Extensions for Leaflet Map Options and Help” page doesn’t change anything on the map, nor does setting the options in the map’s shortcode.
The main problem with this for me is that the cluster radius is too large and I can’t change it.

Thank you!

The page I need help with: [log in to see the link]