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
@@ -124,28 +124,14 @@
    * @param string $filename
    *   Filename to import.
    *
-   * @return $data, $translated_languages
-   *
-   *
-   */
-
-
-  /**
-   * Process article data into article node structure.
-   *
-
-   * @param array $data
-   *   Data of line that was read from the file.
-   *
-   * @return $header
+   * @return array $header
    *   Columns in the file being imported
    *
-   * @return $data
+   * @return array $data
    *   All multilingual content that was read from the files.
    *
-   * @return $translated_languages
+   * @return array $translated_languages
    *   List of language codes that need to be imported.
-   *
    */
   protected function readMultilingualContent($filename) {
     // Find all the language directories available for default content.
@@ -153,12 +139,12 @@
     $translated_languages = [];
     $default_content_path = $module_path . "/default_content/languages/";
     $dir_handle = opendir($default_content_path);
-    while($languages_directory = readdir($dir_handle)) {
+    while ($languages_directory = readdir($dir_handle)) {
       switch ($languages_directory) {
         case ".":
-            break;
+          break;
         case "..":
-            break;
+          break;
         default:
           array_push($translated_languages, $languages_directory);
       }
@@ -167,7 +153,7 @@
 
     // Load all content in all languages.
     $data = [];
-    foreach($translated_languages as $language) {
+    foreach ($translated_languages as $language) {
       if (file_exists($default_content_path . "$language/$filename") &&
       ($handle = fopen($default_content_path . "$language/$filename", 'r')) !== FALSE) {
         $first_csv_line = fgetcsv($handle);
@@ -209,7 +195,7 @@
    */
   protected function importTerms() {
     $module_path = $this->moduleHandler->getModule('demo_umami_content')->getPath();
-    $vocabularies = array("tags","recipe_categories");
+    $vocabularies = ["tags","recipe_categories"];
 
     // import all vocabularies
     foreach ($vocabularies as $vocabulary) {
@@ -373,7 +359,7 @@
    * @param string $vocabulary
    *   Machine name of vocabulary to which we should save terms.
    *
-   * @return $values
+   * @return array $values
    *   Data structured as a term.
    */
   protected function processTerm(array $data, $vocabulary) {
@@ -395,7 +381,7 @@
    * @param array $data
    *   Data of line that was read from the file.
    *
-   * @return $values
+   * @return array $values
    *   Data structured as a page node.
    */
   protected function processPage(array $data) {
@@ -430,7 +416,7 @@
    * @param array $data
    *   Data of line that was read from the file.
    *
-   * @return $values
+   * @return array $values
    *   Data structured as a recipe node.
    */
   protected function processRecipe($module_path, array $data) {
@@ -516,7 +502,6 @@
     return $values;
   }
 
-
   /**
    * Process article data into article node structure.
    *
@@ -525,7 +510,7 @@
    * @param array $data
    *   Data of line that was read from the file.
    *
-   * @return $values
+   * @return array $values
    *   Data structured as an article node.
    */
   protected function processArticle($module_path, array $data) {
@@ -575,7 +560,7 @@
     return $values;
   }
 
-    /**
+  /**
    * Process block_banner data into block_banner block structure.
    *
    * @param string $module_path
@@ -583,7 +568,7 @@
    * @param array $data
    *   Data of line that was read from the file.
    *
-   * @return $values
+   * @return array $values
    *   Data structured as a block.
    */
   protected function processBlock($module_path, array $data, $block_type) {
@@ -646,7 +631,7 @@
           'field_summary' => [
             'value' => $data['field_summary'],
           ],
-          'field_banner_image' => [
+          'field_promo_image' => [
             'target_id' => $this->createFileEntity($module_path . '/default_content/images/' . $data['field_promo_image_target_id']),
             'alt' => $data['field_promo_image_alt'],
           ],
@@ -764,7 +749,7 @@
    */
   protected function importBlockContent() {
     $module_path = $this->moduleHandler->getModule('demo_umami_content')->getPath();
-    $block_types = array("banner_block","disclaimer_block","footer_promo_block");
+    $block_types = ["banner_block", "disclaimer_block", "footer_promo_block"];
 
     // import all block types
     foreach ($block_types as $block_type) {