when I click on 'Find Latest Started Threads' the following comes up

Call to a member function allow_icons() on null on line 225 in /home/oh2admin/public_html/home_public_html/vb/vb/legacy/thread.php
#0 /home/oh2admin/public_html/home_public_html/vb/packages/vbforum/search/type/thread.php(86): vB_Legacy_Thread->has_icon()
#1 /home/oh2admin/public_html/home_public_html/vb/vb/search/resultsview.php(72): vBForum_Search_Type_Thread->prepare_render(Object(vB_Legacy_CurrentUser), Array)
#2 /home/oh2admin/public_html/home_public_html/vb/vb/search/resultsview.php(187): vb_Search_Resultsview->render_searchbits(Array)
#3 /home/oh2admin/public_html/home_public_html/vb/search.php(424): vb_Search_Resultsview->showpage(1, 25, 'search.php?sear...', Array)
#4 {main}

it only happens on my profile not anyone esle's