Limited Support
Our team is currently on holiday, so support will be limited during this period. Response times may be slower than usual, and some inquiries may be delayed.
We appreciate your patience and understanding, and we’ll resume our usual support by the end of August.
Please delete all caches in Dashboard > Forums > Dashboard admin page and try it again. Use other titles for topics, don't always use the Test word.
Also please navigate to My Profile > Account page and make sure you have Display Name. Set display name and save it. Then navigate to Dashboard > Users > Your Profile and make sure you have a Display Name.
I followed your steps and then tried to create my subject and I have this error that appeared:
[Subquery returns more than 1 row]SELECT `slug` FROM apedys_wpforo_forums WHERE `forumid` =(SELECT forumid FROM `apedys_wpforo_topics` WHERE `topicid` =(SELECT `topicid` FROM `apedys_wpforo_posts` WHERE postid = 38689))
Warning: Cannot modify header information - headers already sent by (output started at /home/apedys/www/wp-includes/wp-db.php:1399) in /home/apedys/www/wp-includes/pluggable.php on line 1219
Have you deleted all caches in Dashboard > Forums > Dashboard admin page?
Yes i delete all caches in Dashboard > Forums > Dashboard admin page .