reinstalled all contribs with composer

need to run :
drush ev 'drupal_flush_all_caches();'
drush cr
and restart nginx and php-fpm before loading the website

web/modules/custom/edlp_studio/__composition.page.inc

@@ -0,0 +1,31 @@
+<?php
+
+/**
+ * @file
+ * Contains composition.page.inc.
+ *
+ * Page callback for Composition entities.
+ */
+
+use Drupal\Core\Render\Element;
+
+/**
+ * Prepares variables for Composition templates.
+ *
+ * Default template: composition.html.twig.
+ *
+ * @param array $variables
+ *   An associative array containing:
+ *   - elements: An associative array containing the user information and any
+ *   - attributes: HTML attributes for the containing element.
+ */
+function template_preprocess_composition(array &$variables) {
+  // dpm($variables);
+  // Fetch Composition Entity Object.
+  $composition = $variables['elements']['#composition'];
+
+  // Helpful $content variable for templates.
+  foreach (Element::children($variables['elements']) as $key) {
+    $variables['content'][$key] = $variables['elements'][$key];
+  }
+}