Docman: cannot redeclare themeConfig - Joomla! Forum - community, help and support

hello, have allways used docman succesfully, however, after our migration following error on frontend:

fatal error: cannot redeclare themeconfig::$details_homepage in c:\wamp\www\components\com_docman\themes\default\themeconfig.php on line 36

does have clue? thnx!

take off 1 of redundant occurences of $details_homepage in file themeconfig.php