After successfully submitting strings to Moodle the site returned this error page:
error/Unable to obtain session lock
Debug info:
Error code: Unable to obtain session lock
$a contents:
Error code: Unable to obtain session lock
$a contents:
Stack trace:
- line 366 of /lib/classes/session/redis.php: core\session\exception thrown
- line 258 of /lib/classes/session/redis.php: call to core\session\redis->lock_session()
- line ? of unknownfile: call to core\session\redis->handler_read()
- line 42 of /lib/classes/session/handler.php: call to session_start()
- line 124 of /lib/classes/session/redis.php: call to core\session\handler->start()
- line 80 of /lib/classes/session/manager.php: call to core\session\redis->start()
- line 794 of /lib/setup.php: call to core\session\manager::start()
- line 55 of /config.php: call to require_once()
- line 26 of /local/amos/stage.php: call to require_once()
