I install newbb3.03 on xoops2.24, and I can not postnew topic in forum.Does anybody know how to fix this problem?
Thanks in advanced.
(I'm sorry for posting in wrong place).

Fatal error: Call to undefined function: checkbrowser() in /usr2/home/hp/xoops/class/xoopseditor/koivi/formwysiwygtextarea.php on line 211
Warning [PHP]: render(/home2/hp/xoopsoops/class/xoopseditor/koivi/include/functions.inc.php): failed to open stream: No such file or directory in file /usr2/home/hp/xoops/class/xoopseditor/koivi/formwysiwygtextarea.php line 202
Warning [PHP]: render(): Failed opening '/home2/hp/xoopsoops/class/xoopseditor/koivi/include/functions.inc.php' for inclusion (include_path='.:/usr/local/lib/php') in file /usr2/home/hp/xoops/class/xoopseditor/koivi/formwysiwygtextarea.php line 202

Seems that your koivi editor is out of date