Missing Scheduler definition all of a sudden?

Scheduler
#1

So, I haven’t change my src tags in my code for ages. Basically looks like this:

<link rel="stylesheet" type="text/css" href="./styles.css">
<link rel="stylesheet" href="https://cdn.dhtmlx.com/scheduler/edge/dhtmlxscheduler_material.css">
<link rel="stylesheet" href="https://cdn.dhtmlx.com/edge/dhtmlx.css">
<script src="https://cdn.dhtmlx.com/scheduler/edge/dhtmlxscheduler.js"></script>
<script src="https://cdn.dhtmlx.com/scheduler/edge/ext/dhtmlxscheduler_agenda_view.js"></script>
<script src="https://cdn.dhtmlx.com/scheduler/edge/ext/dhtmlxscheduler_tooltip.js"></script>
<script src="https://cdn.dhtmlx.com/scheduler/edge/ext/dhtmlxscheduler_multiselect.js"></script>
<script src="https://cdn.dhtmlx.com/scheduler/edge/ext/dhtmlxscheduler_year_view.js"></script>
<script src="https://cdn.dhtmlx.com/scheduler/edge/ext/dhtmlxscheduler_editors.js"></script>
<script src="https://cdn.dhtmlx.com/scheduler/edge/ext/dhtmlxscheduler_readonly.js"></script>
<script src="https://cdn.dhtmlx.com/scheduler/edge/ext/dhtmlxscheduler_minical.js"></script>
<script src="https://cdn.dhtmlx.com/edge/dhtmlx.js"></script>

What I am seeing in my browser console (I’ve cleared cache):
image

What might I be missing here?

#2

It appears to be resolved now (nothing changed on my end)