Error After installing theme and buddypress

i install the social theme and then i install buddypress, and after that i receive this error ! pls help me to resolve it

here is the error :---
atal error: Cannot redeclare bp_dtheme_register_actions() (previously declared in /nfs/c07/h03/mnt/111369/domains/fortunecitykolkata.com/html/wp-content/themes/bp-social/_inc/ajax.php:30) in /nfs/c07/h03/mnt/111369/domains/fortunecitykolkata.com/html/wp-content/plugins/buddypress/bp-themes/bp-default/_inc/ajax.php on line 77