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.
/**
* Ensure that Fabrik's loaded
*/
requirejs(['fab/fabrik'], function () {
// An edit window has been closed
Fabrik.addEvent('fabrik.list.row.edit.close', function (listRef, rowid, k) {
// Update the lists data
Fabrik.getBlock(listRef).updateRows();
});
});