Events+ Export Buddy Press Fields in CSV

Back in January I went through a bunch of troubleshooting with @Hoang Ngo to get this working... See the thread & code that solved the problem here:

Now when I try to export the CSV from an event within Events+ I am getting the following:

Problem Loading Page:
File not found

Firefox can't find the file at
Check the file name for capitalization or other typing errors.
Check to see if the file was moved, renamed or deleted.

If I remove the code provided by @Hoang Ngo from my functions.php file the export works but only exports the following (user ID, User Name, User Email, Attending, Ticket Count, and Payment). What do I need to do to get this working again?