Our Joomla site has Kunena forum (Kunena versio is 5.2.3).
Kunena works otherwise ok, but when a user posts a new Kunena message, Joomla sends "Unhandled exception - ValueError" message:
Exception Type: ValueError
File: /var/www/vhosts/sitenamehere/httpdocs/plugins/system/admintools/feature/uploadshield.php
Line: 162
Message: Path cannot be empty
This started to happen when we changed PHP version to 8.0.9. There is no problem when using PHP 7.4.22
Is this problem caused by Admin tools or Kunena (both should be ok with PHP 8)?
Br. Juha