[Help] Problem Unread node

hello guys i dont know if im allowed to ask or not but i need a little help about my forum that i made it from XenForo , the problem is the Read Node shows

Ex : when there is no news it will get us a little logo of No news

Ex : @imagePath/xenforo/node-sprite_nonew.png

and when someone post something it should get us this icon

the problem is : it shows Empty Logo ( Nothing )
we edit it to


to test it if it works nothing too
Ps : it works on read node but not on unread node

thnk yo ufor your answers