Regression: The switch role functionality caused a fatal error with some theme configurations

CHANGES.md

@@ -4,6 +4,10 @@ moodle-theme_boost_campus
 Changes
 -------
 
+### Unreleased
+
+* 2021-09-16 - Regression: The switch role functionality caused a fatal error with some theme configurations - Thanks to Klaus Steitz.
+
 ### v3.10-r8
 
 * 2021-08-17 - Bugfix: The timed info banner had a wrong CSS ID - Credits to Tim Schroeder.

locallib.php

@@ -542,6 +542,9 @@ function theme_boost_campus_show_timed_banner_on_selected_page($now, $timedibsho
 function theme_boost_campus_get_course_information_banners() {
     global $CFG, $COURSE, $PAGE, $USER;
 
+    // Require user library.
+    require_once($CFG->dirroot.'/user/lib.php');
+
     // Initialize HTML code.
     $html = '';