Call Recordings Page Is Blank

How can I resolve the error below? This appears in the error log any time I attempt to access Call Recordings. I’ve read through several posts on this issue but none of the items seem to apply (updating ARI, removing Google Voice, etc.)

PHP Fatal Error
Call to undefined function recording_report_sales() in /var/www/html/admin/modules/recording_report/views/page.recording_report.pho on line 285, referer: