jude rosario add on to appointments plus will not activate

HI
Jude Rosario made an add on to appointments plus. I uploaded it from github and I get this message

Plugin could not be activated because it triggered a fatal error.
Fatal error: Cannot redeclare init_bp_feb() (previously declared in /home/content/p3pnexwpnas08_data01/22/2474922/html/wp-content/mu-plugins/app-bp-frontend-booking.php:180) in /home/content/p3pnexwpnas08_data01/22/2474922/html/wp-content/plugins/app-bp-frontend-booking-master/app-bp-frontend-booking.php on line185

Please advice - he kinda made this plugin because of me
thanks so much