Signup Code Plugin Broke Admin

https://premium.wpmudev.org/project/signup-code

Hi There,

First off, thanks for providing support.

I uploaded this plugin to my mu-plugins folder on my Buddypress/WordPress MU site and it broke the backend admin navigation.

The drop-downs are broken and each time I try to make an edit (post, general settings, etc), it asks me to open the file (ie post.php when trying to update a post). I tried deleting the plugin to no avail.

Please help!