diff --git a/database/Database.php b/database/Database.php
index 66855ab43538fdbd9445bf71e01cf7d6e6422445..8f526eec8718a62bf293416c637da05b925613f4 100644
--- a/database/Database.php
+++ b/database/Database.php
@@ -70,12 +70,12 @@ class Database
     private function apply_config(\PDOStatement $stmt)
     {
         $values = [
-            ":config_normalizatio" => 4,
+            ":config_normalization" => 4,
             ":weight_content" => 4,
             ":weight_type" => 5,
             ":weight_time" => 1,
         ];
-        foreach ($this->rankingParameters() as $parameter) {
+        foreach ($this->backend->rankingParameters() as $parameter) {
             $stmt->bindValue($parameter, $values[$parameter], PDO::PARAM_INT);
         }
     }