Calendar is not loading

Hello.
Reason of issue.
You are having some JavaScript error at that page.

Error: <code>selector</code> option must be specified when initializing tooltip on the window.document object! 1 bootstrap.js:1037:13

You can recheck your page for any JavaScript errors (usually for see what JavaScript error you have you need to press Ctrl + Shift + J for showing browser console) and try to fix them.

This JavaScript error is generating by the “photonic” plugin:
http://www.koningdrosse.be/wp-content/plugins/photonic/include/scripts/photonic.js:837:2
from this code:

	$(document).tooltip({
		items: '.title-display-tooltip a, .photonic-slideshow.title-display-tooltip img',
		track: true,
		show: false,
		hide: false
	});

Solution.
1) So you can deactivate this “photonic” plugin and test it again.
2) Or you can try to deactivate this option: “Disable Bootstrap loading on Front-End” at the Booking > Settings General page in Advanced section after clicking on “Show advanced settings of JavaScript loading” link. Please note, activate only disabling it at front-end side. Also in paid versions, its can be reason, why mouse over tooltips will not show.

Kind Regards.