Issue: Error trying to click a [wiki] link from forum

ErrorException: [E_WARNING] Trying to access array offset on null in src/addons/vw/vw/_core/model/url/xf2.php at line 268
XF::handlePhpError() in src/addons/vw/vw/_core/model/url/xf2.php at line 268
vw_URL_Model_XF2->proxy_make() in src/addons/vw/vw/_core/model/url/vw.php at line 1240
vw_URL_Model->proxy() in src/addons/vw/vw/_core/view/factory/icon/vw.php at line 288
vw_Factory_Icon_View->get_icon() in src/addons/vw/vw/_core/view/ui/stack/vw.php at line 46
vw_UI_Stack_View->body() in src/addons/vw/vw/_core/view/ui/stack/vw.php at line 34
vw_UI_Stack_View->wrap() in src/addons/vw/vw/_core/view/reply/view/vw.php at line 48
vw_Reply_View_View->render_type() in src/addons/vw/vw/_core/view/reply/base/vw.php at line 136
vw_Reply_base_View->render() in src/addons/vw/vw/_core/view/reply/stack/vw.php at line 71
vw_Reply_Stack_View->render() in src/addons/vw/vw/XF/Mvc/View.php at line 26
vw\vw\XF\Mvc\View->renderHtml() in src/XF/Mvc/Renderer/AbstractRenderer.php at line 92
XF\Mvc\Renderer\AbstractRenderer->renderViewObject() in src/XF/Mvc/Renderer/Html.php at line 47
XF\Mvc\Renderer\Html->renderView() in src/XF/Mvc/Dispatcher.php at line 471
XF\Mvc\Dispatcher->renderView() in src/XF/Mvc/Dispatcher.php at line 453
XF\Mvc\Dispatcher->renderReply() in src/XF/Mvc/Dispatcher.php at line 412
XF\Mvc\Dispatcher->render() in src/XF/Mvc/Dispatcher.php at line 66
XF\Mvc\Dispatcher->run() in src/XF/App.php at line 2826
XF\App->run() in src/XF.php at line 806
XF::runApp() in index.php at line 23