Fatal Error

Delete the plugin and install directly from the wordpress repo.

It sounds like your FTP client stripped the whitespace from the code and smashed the lines together.

See: http://www.inboundnow.com/support/topic/fatal-error-with-wordpress-3-7-1/

What you need is this: http://www.inboundnow.com/support/topic/fatal-error-with-wordpress-3-7-1/#post-92289

Did you upload the plugin manually?