Error: Declaration of Drupal\mcapi_command\Form\CommandSettings::submitForm() must be compatible with Drupal\Core\Form\FormInterface::submitForm(array &$form, Drupal\Core\Form\FormStateInterface $form_state)

drush cr
Drush command terminated abnormally due to an unrecoverable error. [error]
Error: Declaration of
Drupal\mcapi_command\Form\CommandSettings::submitForm() must be
compatible with Drupal\Core\Form\FormInterface::submitForm(array
&$form, Drupal\Core\Form\FormStateInterface $form_state) in
modules/contrib/mutual_credit/modules/command/src/Form/CommandSettings.php,
line 151