bbpress Breadcrumb wrong contain link

hi, take a look here http://bettingtip.info/forums/forum/test-forum-1/ on part
› Forums › Prvi forum

link on word "forum" take to page http://bettingtip.info/forums/ but that page is blank, main page for forum is main site? can you help me to set up that "forum" link to main site where is bbpresss based. please help me