[User Error] Couldn't run query: SELECT "SiteTree_Live".*, "ErrorPage_Live".*, "SiteTree_Live"."ID", CASE WHEN "SiteTree_Live"."ClassName" IS NOT NULL THEN "SiteTree_Live"."ClassName" ELSE 'SiteTree' END AS "RecordClassName" FROM "SiteTree_Live" LEFT JOIN "ErrorPage_Live" ON "ErrorPage_Live"."ID" = "SiteTree_Live"."ID" WHERE ("ErrorCode" = '404') AND ("SiteTree_Live"."ClassName" IN ('ErrorPage')) AND ("Lang" = 'en' OR "Lang" = '' OR "Lang" IS NULL ) ORDER BY "Sort" LIMIT 1 Unknown column 'Lang' in 'where clause'
GET /
Line 428 in /home/ixxxx/public_html/sapphire/core/model/MySQLDatabase.php

Source
419 	}
420 	
421 	function databaseError($msg, $errorLevel = E_USER_ERROR) {
422 		// try to extract and format query
423 		if(preg_match('/Couldn\'t run query: ([^\|]*)\|\s*(.*)/', $msg, $matches)) {
424 			$formatter = new SQLFormatter();
425 			$msg = "Couldn't run query: \n" . $formatter->formatPlain($matches[1]) . "\n\n" . $matches[2];
426 		}
427 		
428 		user_error($msg, $errorLevel);
429 	}
430 	
431 	/**
432 	 * Return a boolean type-formatted string
433 	 * 
434 	 * @params array $values Contains a tokenised list of info about this data type
Trace
Couldn't run query: SELECT "SiteTree_Live".*, "ErrorPage_Live".*, "SiteTree_Live"."ID", CASE WHEN "SiteTree_Live"."ClassName" IS NOT NULL THEN "SiteTree_Live"."ClassName" ELSE 'SiteTree' END AS "RecordClassName" FROM "SiteTree_Live" LEFT JOIN "ErrorPage_Live" ON "ErrorPage_Live"."ID" = "SiteTree_Live"."ID" WHERE ("ErrorCode" = '404') AND ("SiteTree_Live"."ClassName" IN ('ErrorPage')) AND ("Lang" = 'en' OR "Lang" = '' OR "Lang" IS NULL ) ORDER BY "Sort" LIMIT 1 Unknown column 'Lang' in 'where clause' 
Line 428 of MySQLDatabase.php 
MySQLDatabase->databaseError(Couldn't run query: SELECT "SiteTree_Live".*, "ErrorPage_Live".*, "SiteTree_Live"."ID", CASE WHEN "SiteTree_Live"."ClassName" IS NOT NULL THEN "SiteTree_Live"."ClassName" ELSE 'SiteTree' END AS "RecordClassName" FROM "SiteTree_Live" LEFT JOIN "ErrorPage_Live" ON "ErrorPage_Live"."ID" = "SiteTree_Live"."ID" WHERE ("ErrorCode" = '404') AND ("SiteTree_Live"."ClassName" IN ('ErrorPage')) AND ("Lang" = 'en' OR "Lang" = '' OR "Lang" IS NULL ) ORDER BY "Sort" LIMIT 1 | Unknown column 'Lang' in 'where clause',256) 
Line 104 of MySQLDatabase.php 
MySQLDatabase->query(SELECT "SiteTree_Live".*, "ErrorPage_Live".*, "SiteTree_Live"."ID", CASE WHEN "SiteTree_Live"."ClassName" IS NOT NULL THEN "SiteTree_Live"."ClassName" ELSE 'SiteTree' END AS "RecordClassName" FROM "SiteTree_Live" LEFT JOIN "ErrorPage_Live" ON "ErrorPage_Live"."ID" = "SiteTree_Live"."ID" WHERE ("ErrorCode" = '404') AND ("SiteTree_Live"."ClassName" IN ('ErrorPage')) AND ("Lang" = 'en' OR "Lang" = '' OR "Lang" IS NULL ) ORDER BY "Sort" LIMIT 1,256) 
Line 104 of DB.php 
DB::query(SELECT "SiteTree_Live".*, "ErrorPage_Live".*, "SiteTree_Live"."ID", CASE WHEN "SiteTree_Live"."ClassName" IS NOT NULL THEN "SiteTree_Live"."ClassName" ELSE 'SiteTree' END AS "RecordClassName" FROM "SiteTree_Live" LEFT JOIN "ErrorPage_Live" ON "ErrorPage_Live"."ID" = "SiteTree_Live"."ID" WHERE ("ErrorCode" = '404') AND ("SiteTree_Live"."ClassName" IN ('ErrorPage')) AND ("Lang" = 'en' OR "Lang" = '' OR "Lang" IS NULL ) ORDER BY "Sort" LIMIT 1) 
Line 396 of SQLQuery.php 
SQLQuery->execute() 
Line 2370 of DataObject.php 
DataObject->instance_get_one("ErrorCode" = '404',) 
Line 2307 of DataObject.php 
DataObject::get_one(ErrorPage,"ErrorCode" = '404') 
Line 100 of ModelAsController.php 
ModelAsController->get404Page() 
Line 51 of ModelAsController.php 
ModelAsController->getNestedController() 
Line 16 of ModelAsController.php 
ModelAsController->handleRequest(HTTPRequest) 
Line 27 of RootURLController.php 
RootURLController->handleRequest(HTTPRequest) 
Line 262 of Director.php 
Director::handleRequest(HTTPRequest,Session) 
Line 106 of Director.php 
Director::direct() 
Line 116 of main.php