Hotfix for issue with navigation for users who do not have view rights for one of the level 1 categories

classes/local/helpers/webservicehelper.php

@@ -74,6 +74,12 @@ class webservicehelper {
         // Initialize parent if needed.
         if ($parent == null) {
             $parent = \core_course_category::user_top();
+
+            if ($parent == null) {
+                // If the parent is still null, we do not have a valid user top.
+                return false;
+            }
+
             if (has_capability($capability, $parent->get_context())) {
                 $list[] = $parent;
             }

version.php

@@ -22,10 +22,13 @@
 defined('MOODLE_INTERNAL') || die();
 
 $plugin->component = 'local_treestudyplan';  // Recommended since 2.0.2 (MDL-26035). Required since 3.0 (MDL-48494).
-$plugin->version = 2023090701;  // YYYYMMDDHH (year, month, day, iteration).
+/* IMPORTANT: For studyplan-10 branch, only increment the iteration part of the version below
+   since this is a bugfix branch
+ */
+$plugin->version = 2023090702;  // YYYYMMDDHH (year, month, day, iteration).
 $plugin->requires = 2021051700; // YYYYMMDDHH (This is the release version for Moodle 3.11).
 
-$plugin->release = "1.0.0";
+$plugin->release = "1.0.1";
 $plugin->maturity = MATURITY_STABLE;
 
 // Supported from Moodle 3.11 to 4.1 (4.2 not yet tested).