Error page: /plus/search.php?keyword=%D7%AA%C8%C3

Error infos: Incorrect table name ''
Error sql: Select arc.*,act.typedir,act.typename,act.isdefault,act.defaultname,act.namerule, act.namerule2,act.ispart,act.moresite,act.siteurl,act.sitepath from `` arc left join `dede_arctype` act on arc.typeid=act.id where arc.arcrank > -1 And ( CONCAT(arc.title,' ',' ',arc.keywords) like '%转让%' ) order by arc.sortrank desc limit 0,10