"Cannot use a scalar value as an array in css_emimage-fork/css_emimage.module on line 362"

After updating some modules including Boost, I get this error when running update.php:

warning: Cannot use a scalar value as an array in /home/shareontheweb/public_html/sites/all/modules/css_emimage-fork/css_emimage.module on line 362.

I am using the forked module for advagg support
http://drupal.org/node/1078060