I´ve migrated my portfolio site that was working fine in Joomla 3 with the GK Portfolio template to a new installation of Joomla 5.2.5 (PHP 8.3) with the newer GK Portfolio 2.1.0 template and without any articles on the site it works normally. But, when publish the first article, the site breaks and shows the following error: 0 - count(): Argument #1 ($value) must be of type Countable|array, null given.
I've searched other older forum posts, but I haven't solved it. I believe it's a new error involving the newer version of Joomla. Can anyone help?
GK Portfolio 2.1.0 not working on Joomla 5