Save and save all not working !

[fazliddin51998]

Method Illuminate\Foundation Application:undateOrCreate does not exist. Error: Request failed with status code 500

<?php return [ 'groups' => [ 'auth', 'pagination', 'passwords', 'validation', 'nova' ], 'languages' => [ 'en' => 'English', 'ru' => 'Русский', ] ];