Error page: /plus/search.php?keyword=%E5%85%AC%E5%AE%89%E5%AD%A6&searchtype=titlekeyword

Error infos: MySQL server has gone away
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 `w_archives` arc left join `w_arctype` act on arc.typeid=act.id where arc.arcrank > -1 And ( CONCAT(arc.title,' ',arc.writer,' ',arc.keywords) like '%公安%' OR CONCAT(arc.title,' ',arc.writer,' ',arc.keywords) like '%學%' ) order by arc.sortrank desc limit 0,10

Error page: /plus/search.php?keyword=%E5%85%AC%E5%AE%89%E5%AD%A6&searchtype=titlekeyword

Error infos: MySQL server has gone away
Error sql: Select keyword,count From `w_search_keywords` where ( CONCAT(spwords,' ') like '%公安 %' Or CONCAT(spwords,' ') like '%學 %' ) And Not(keyword like '公安學') order by lasttime desc limit 0,8;