Fix compatibility with multilang sites

Signed-off-by: Tobias Wolf <[email protected]>

Author: tobiasfabian

models/orderPageAbstract.php

@@ -22,6 +22,7 @@ public function errors(): array
 
         $fields = array_change_key_case($this->blueprint()->fields());
         // add model to each field
+        $this->kirby()->setCurrentLanguage($this->kirby()->defaultLanguage()->code());
         $fields = array_map(function ($field) {
             $field['model'] = $this;
             return $field;