Fatal error: Declaration of Drupal\tamara_payment\PluginForm\TamaraConfigurationForm::submitForm(array $form, Drupal\Core\Form\FormStateInterface $form_state) must be compatible with Drupal\Core\Form\FormInterface::submitForm(array &$form, Drupal\Core\Form\FormStateInterface $form_state) in /home/u104912511/domains/bernsa.com/public_html/modules/custom/tamara_payment/src/PluginForm/TamaraConfigurationForm.php on line 34