I have just realized that the contact form isn´t working when a user isn´t logged into the forum - argh.
The page returns HTTP ERROR 500.
The form does work when a user is logged in.
captcha_email on/off makes no difference.
I have looked through contact.inc.php but can´t figure out what is wrong.
Forum is version 20220803.1. PHP version is 8.0.
Any help is appreciated.