Notice: Undefined variable: category in ...category.php on line 30 (Thanks GJSchaller)

Notice: Undefined variable: category in components/com_kunena/template/crypsis/layouts/topic/row/category.php on line 30

Fix that issue in same time : http://www.kunena.org/forum/kunena-3-1-issues-and-bug-reports/130182-colspan-for-dividers-mar-10-2014-build#154674