diff --git a/admin/tool/analytics/classes/output/helper.php b/admin/tool/analytics/classes/output/helper.php
index 6543022315d..861d6794f83 100644
--- a/admin/tool/analytics/classes/output/helper.php
+++ b/admin/tool/analytics/classes/output/helper.php
@@ -92,4 +92,17 @@ class helper {
         $PAGE->set_title($title);
         $PAGE->set_heading($title);
     }
+
+    /**
+     * Resets the current page.
+     *
+     * Note that this function can only be used by analytics pages that work at the system context.
+     *
+     * @return null
+     */
+    public static function reset_page() {
+        global $PAGE;
+        $PAGE->reset_theme_and_output();
+        $PAGE->set_context(\context_system::instance());
+    }
 }
diff --git a/admin/tool/analytics/classes/task/predict_models.php b/admin/tool/analytics/classes/task/predict_models.php
index 83894beb68b..91f3c850688 100644
--- a/admin/tool/analytics/classes/task/predict_models.php
+++ b/admin/tool/analytics/classes/task/predict_models.php
@@ -60,6 +60,10 @@ class predict_models extends \core\task\scheduled_task {
 
         foreach ($models as $model) {
             $result = $model->predict();
+
+            // Reset the page as some indicators may call external functions that overwrite the page context.
+            \tool_analytics\output\helper::reset_page();
+
             if ($result) {
                 echo $OUTPUT->heading(get_string('modelresults', 'tool_analytics', $model->get_target()->get_name()));
                 $renderer = $PAGE->get_renderer('tool_analytics');
diff --git a/admin/tool/analytics/classes/task/train_models.php b/admin/tool/analytics/classes/task/train_models.php
index b017e9a812f..3c0c3c96019 100644
--- a/admin/tool/analytics/classes/task/train_models.php
+++ b/admin/tool/analytics/classes/task/train_models.php
@@ -71,6 +71,10 @@ class train_models extends \core\task\scheduled_task {
             }
 
             $result = $model->train();
+
+            // Reset the page as some indicators may call external functions that overwrite the page context.
+            \tool_analytics\output\helper::reset_page();
+
             if ($result) {
                 echo $OUTPUT->heading(get_string('modelresults', 'tool_analytics', $model->get_target()->get_name()));
 
diff --git a/admin/tool/analytics/cli/evaluate_model.php b/admin/tool/analytics/cli/evaluate_model.php
index 2836ca76a49..8473aba6ab0 100644
--- a/admin/tool/analytics/cli/evaluate_model.php
+++ b/admin/tool/analytics/cli/evaluate_model.php
@@ -111,6 +111,9 @@ $analyseroptions = array(
 // Evaluate its suitability to predict accurately.
 $results = $model->evaluate($analyseroptions);
 
+// Reset the page as some indicators may call external functions that overwrite the page context.
+\tool_analytics\output\helper::reset_page();
+
 $renderer = $PAGE->get_renderer('tool_analytics');
 echo $renderer->render_evaluate_results($results, $model->get_analyser()->get_logs());
 
diff --git a/admin/tool/analytics/model.php b/admin/tool/analytics/model.php
index 3cca64ebda4..ab2fe61796a 100644
--- a/admin/tool/analytics/model.php
+++ b/admin/tool/analytics/model.php
@@ -156,8 +156,6 @@ switch ($action) {
     case 'evaluate':
         confirm_sesskey();
 
-        echo $OUTPUT->header();
-
         if ($model->is_static()) {
             throw new moodle_exception('errornostaticevaluate', 'tool_analytics');
         }
@@ -176,6 +174,12 @@ switch ($action) {
             $options['mode'] = 'trainedmodel';
         }
         $results = $model->evaluate($options);
+
+        // We reset the theme and the output as some indicators may be using external functions
+        // which reset $PAGE.
+        \tool_analytics\output\helper::reset_page();
+        echo $OUTPUT->header();
+
         $renderer = $PAGE->get_renderer('tool_analytics');
         echo $renderer->render_evaluate_results($results, $model->get_analyser()->get_logs());
         break;
@@ -183,8 +187,6 @@ switch ($action) {
     case 'getpredictions':
         confirm_sesskey();
 
-        echo $OUTPUT->header();
-
         if ($onlycli) {
             throw new moodle_exception('erroronlycli', 'tool_analytics');
         }
@@ -202,6 +204,11 @@ switch ($action) {
             $predictlogs = array();
         }
 
+        // We reset the theme and the output as some indicators may be using external functions
+        // which reset $PAGE.
+        \tool_analytics\output\helper::reset_page();
+        echo $OUTPUT->header();
+
         $renderer = $PAGE->get_renderer('tool_analytics');
         echo $renderer->render_get_predictions_results($trainresults, $trainlogs, $predictresults, $predictlogs);
         break;