diff -u b/src/Form/AllOtherUsersLogoutForm.php b/src/Form/AllOtherUsersLogoutForm.php
--- b/src/Form/AllOtherUsersLogoutForm.php
+++ b/src/Form/AllOtherUsersLogoutForm.php
@@ -4,8 +4,6 @@
 
 use Drupal\Core\Form\ConfigFormBase;
 use Drupal\Core\Form\FormStateInterface;
-use Drupal\user\Entity\User;
-use Drupal\user\Entity\Role;
 use Drupal\Core\Entity\EntityTypeManagerInterface;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 
@@ -60,13 +58,6 @@
   public function buildForm(array $form, FormStateInterface $form_state){
     $config = $this->config('force_users_logout.allotherusers_logout_form');
     $form = array();
-    $roles = Role::loadMultiple();
-    $optionarray[] = '';
-    foreach ($roles as $rolekey => $roleval) {
-      if ($rolekey != 'administrator' && $rolekey != 'authenticated' && $rolekey != 'anonymous') {
-        $optionsarray[$rolekey] = $roleval->label();
-      }
-    }
     $form['input_fields']['selectallogout'] = [
       '#type' => 'checkbox',
       '#title' => $this->t('This setting will force logout all users except admin'),
@@ -93,7 +84,6 @@
                ->condition('roles','anonymous','<>');
       $uids = $query->execute();
       $result = \Drupal::entityTypeManager()->getStorage('user')->loadMultiple($uids);
-      /** @var \Drupal\user\UserInterface $user */
       foreach ($result as $user) {
         \Drupal::currentUser()->setAccount($user);
         if (\Drupal::currentUser()->isAuthenticated()) {