Settings administration page doesn't appear

When attempting to access the Less administration page, I get this error:

Error message
Warning: Parameter 1 to less_settings() expected to be a reference, value given in drupal_retrieve_form() (line 771 of /var/www/townsquare/includes/form.inc).

I'm not hot enough on D7 yet (just a few days working with it) to know if how it works yet (my suspicion is a change in the menu system...) but my Less is broken in a couple way.