Sidebar Pro Error in widget manager

I recently began moving my WP sites to the Pantheon environment and discovered the following error under each custom sidebar widget.

"Warning: Missing argument 2 for apply_filters(), called in /srv/bindings/764eaa0f2f9b498e9b07311d311c8270/code/wp-content/plugins/custom-sidebars/inc/class-custom-sidebars-visibility.php on line 531 and defined in /srv/bindings/764eaa0f2f9b498e9b07311d311c8270/code/wp-includes/plugin.php on line 177"

Please have a look. I have enable access for you guys.

-Paul Ehrman
Rocket Matter