diff --git a/CitationStyleLanguageSettingsForm.php b/CitationStyleLanguageSettingsForm.php
index e69c299..a02530f 100644
--- a/CitationStyleLanguageSettingsForm.php
+++ b/CitationStyleLanguageSettingsForm.php
@@ -105,7 +105,7 @@ public function fetch($request, $template = null, $display = false): ?string
         $userGroups = Repo::userGroup()->getByRoleIds([Role::ROLE_ID_AUTHOR], $contextId);
         $userGroups = $userGroups->toArray();
         foreach ($userGroups as $userGroup) {
-            $allUserGroups[(int) $userGroup->getId()] = $userGroup->getLocalizedName();
+            $allUserGroups[(int) $userGroup->id] = $userGroup->getLocalizedData('name');
         }
         asort($allUserGroups);
 
diff --git a/pages/CitationStyleLanguageHandler.php b/pages/CitationStyleLanguageHandler.php
index 11c6c6a..c8ebfc7 100644
--- a/pages/CitationStyleLanguageHandler.php
+++ b/pages/CitationStyleLanguageHandler.php
@@ -187,7 +187,7 @@ protected function canUserAccess($context, $user, $userRoles)
                     continue;
                 }
                 $userGroup = Repo::userGroup()->get($assignment->getUserGroupId($context->getId()));
-                if (in_array($userGroup->getRoleId(), [Role::ROLE_ID_SUB_EDITOR, Role::ROLE_ID_ASSISTANT])) {
+                if (in_array($userGroup->roleId, [Role::ROLE_ID_SUB_EDITOR, Role::ROLE_ID_ASSISTANT])) {
                     return true;
                 }
             }