bbPress Forums not working after 4.0 install

hi is there bbpress developer who have solution for this when i update my worpress to 4.0 and bbpress to Version 2.5.4 but not showing any replies list on this url and m also change the bbpress.php but this one not done so i replaced it with old version and its on work better:
http://www.rtownacademy.com/community/topic/book-recommendations/#post-2745

please help to solve out this problem

https://wordpress.org/plugins/bbpress/