Perfect !!!
My script before:
{{if request.app == 'forums' and request.module == 'forums' and request.do != 'add' and !isset(\IPS\Output::i()->hiddenElements['nbenhadverts_club_id'])}}
{{$forumId = 0; try { $topic = \IPS\forums\Topic::loadAndCheckPerms( \IPS\Request::i()->id ); $forumId = $topic->forum_id; } catch( \Exception $e ) {};}}
{{if !in_array($forumId, array(26,10))}}1{{endif}}{{endif}}
Current Script:
{{if \IPS\Output::i()->hiddenElements['nbenhadverts_node_class'] == 'IPS\forums\Forum' and request.do != 'add' and !isset(\IPS\Output::i()->hiddenElements['nbenhadverts_club_id']) and !in_array(\IPS\Output::i()->hiddenElements['nbenhadverts_node_id'], array(26,10))}}1{{endif}}