For running J!5.1 you must https://fabrikar.com/forums/index.php?wiki/update-from-github/ or include the new file manually https://fabrikar.com/forums/index.php?threads/joomla-5-1-and-fabrik-cannot-find-files-error.54473/post-285151 See also Announcements
See Announcement
We are still working on the Joomla update.
function getParams()
{
if (!isset($this->_params))
{
$form = $this->getForm();
$this->_params = new JRegistry($form->params);
}
return $this->_params;
}