Runtime Error on zoom level 8, when running latest version of toner.

[glampr]

I've setup my own server and I'm using the latest version of toner theme.
When trying to view zoom level 8, and probably smaller zoom levels as well, I get this error:

RuntimeError: Shape Plugin: no attribute 'roadtype' in '/home/user/.cascadenik/931d5774-ne_10m_roads-merc'. Valid attributes are: scalerank,featurecla,type,sov_a3,note,edited,name,namealt,namealtt,routeraw,question,length_km,toll,ne_part,label,label2,local,localtype,localalt,labelrank,ignore,add,rwdb_rd_id,orig_fid,prefix,uident,continent,expressway,level.