I have used Facebook Likebox previously and it's an awesome extension. However, on this latest installation it doesn't display correctly. I've attached a screenshot to show how it looks. Although I had the correct Twitter details in it, the Twitter tab failed to show at all.
I turned on development debugging and, when I open up the FBLB module there are these errors:
Warning: SimpleXMLElement::xpath(): Invalid predicate in /home/reachsky/public_html/libraries/src/Form/Form.php on line 1645
Warning: SimpleXMLElement::xpath(): xmlXPathEval: evaluation failed in /home/reachsky/public_html/libraries/src/Form/Form.php on line 1645
They're repeated 4 times.