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
Please see our announcement here.
If you want to display the title (in any fabrik form/list) this should do.Or (once it is defaulting to the correct ID) you could simply try changing the element type from a field element to a database join, pointing at the J! content table, with key set to 'id' and label set to 'title'...
$id=JRequest::getInt('origid', 0);
$db =&JFactory::getDBO();
$db->setQuery("SELECT `title` FROM `#_content` where `id` =$id");
$title = $db->loadResult();
return $title;