Type error in Setting Form.php

Problem/Motivation

ArgumentCountError: Too few arguments to function Drupal\Core\Form\ConfigFormBase::__construct(), 1 passed in /var/www/html/docroot/modules/contrib/themed_fast_404/src/Form/SettingsForm.php on line 23 and exactly 2 expected in Drupal\Core\Form\ConfigFormBase->__construct() (line 44 of core/lib/Drupal/Core/Form/ConfigFormBase.php).

Steps to reproduce

Go to admin/config/system/themed_fast_404, the page is broken and throwing error.

Proposed resolution

Pass correct parameters while calling parent constructor