From 81870d3e0ddaed10abfbe23a1ce9c095a201e573 Mon Sep 17 00:00:00 2001
From: Stefan Hanauska <stefan.hanauska@csg-in.de>
Date: Mon, 16 Dec 2024 09:19:55 +0100
Subject: [PATCH] MBS-9795: Fix problem during installation

---
 classes/local/hook_callbacks.php | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/classes/local/hook_callbacks.php b/classes/local/hook_callbacks.php
index 91121f2..c07e204 100644
--- a/classes/local/hook_callbacks.php
+++ b/classes/local/hook_callbacks.php
@@ -50,6 +50,11 @@ class hook_callbacks {
     public static function inject_backlinks_into_activity_header(before_http_headers $beforehttpheadershook): void {
         global $OUTPUT, $PAGE;
 
+        // Don't run during initial install.
+        if (during_initial_install()) {
+            return;
+        }
+
         if (get_config('mod_learningmap', 'backlinkallowed') == 0) {
             return;
         }