Fatal error: Uncaught Error: Class "core_external\external_api" not found in /srv/www/htdocs/moodle/lib/classes/external/moodlenet_get_share_info_activity.php:35 Stack trace: #0 {main} thrown in /srv/www/htdocs/moodle/lib/classes/external/moodlenet_get_share_info_activity.php on line 35