An error occurred!Can't execute statement: Lost connection to MySQL server during query

SQL: select * from categories where catid = '1' order by category select * from categories where catid = '27' and topcatid = '1' select adid from ads_allwords, delta_ads_allwords where match('@(adtitle,addescription,allwords,location) "congratulations" & "wine" & "gift" & "baskets"') order by adid desc limit 10000000 option max_matches=10000000