diff -u b/core/profiles/demo_umami/modules/demo_umami_content/src/InstallHelper.php b/core/profiles/demo_umami/modules/demo_umami_content/src/InstallHelper.php
--- b/core/profiles/demo_umami/modules/demo_umami_content/src/InstallHelper.php
+++ b/core/profiles/demo_umami/modules/demo_umami_content/src/InstallHelper.php
@@ -547,8 +547,6 @@
    *
    * @param array $data
    *   Data of line that was read from the file.
-   * @param string $langcode
-   *   Current language code.
    *
    * @return array
    *   Data structured as a block.