PHP error
[25-Dec-2020 20:47:20 Europe/Paris] PHP Warning: Use of undefined constant i - assumed 'i' (this will throw an Error in a future version of PHP) in /var/forum/classes/admin.php on line 66
[25-Dec-2020 20:47:20 Europe/Paris] PHP Notice: Undefined index: postID in /var/forum/classes/admin.php on line 69
I don't know why this is showing me this error, however no problem with the forum