Version 4.6.0

applications/forums/api/GraphQL/Queries/Topics.php

@@ -128,7 +128,7 @@ class _Topics
 			$orderBy = 'last_post';
 		}
 
-		$sortBy = "{$orderBy} {$args['orderDir']}";
+		$sortBy = \IPS\forums\Topic::$databaseTable . '.' . \IPS\forums\Topic::$databasePrefix . "{$orderBy} {$args['orderDir']}";
 		$offset = max( $args['offset'], 0 );
 		$limit = min( $args['limit'], 50 );