2 files changed, 2 insertions, 2 deletions
diff --git a/classes/db/pdo.php b/classes/db/pdo.php
index 59499139d..126f5150a 100644
--- a/classes/db/pdo.php
+++ b/classes/db/pdo.php
@@ -79,7 +79,7 @@ class Db_PDO implements IDb {
 	}
 
 	function last_error() {
-		return join(" ", $pdo->errorInfo());
+		return join(" ", $this->pdo->errorInfo());
 	}
 
 	function init() {
diff --git a/classes/db/prefs.php b/classes/db/prefs.php
index 26fb4666b..3e92bb89b 100644
--- a/classes/db/prefs.php
+++ b/classes/db/prefs.php
@@ -105,7 +105,7 @@ class Db_Prefs {
 			return $this->convert($value, $type_name);
 
 		} else {
-			user_error("Fatal error, unknown preferences key: $pref_name", $die_on_error ? E_USER_ERROR : E_USER_WARNING);
+			user_error("Fatal error, unknown preferences key: $pref_name (owner: $user_id)", $die_on_error ? E_USER_ERROR : E_USER_WARNING);
 			return null;
 		}
 	}