Fatal error: Uncaught Error: Class "core_external\external_api" not found in /srv/www/htdocs/moodle/lib/editor/tiny/plugins/premium/classes/external/get_api_key.php:32 Stack trace: #0 {main} thrown in /srv/www/htdocs/moodle/lib/editor/tiny/plugins/premium/classes/external/get_api_key.php on line 32