pile of jquery errors

Let me start by saying, I love your plugin! The slides are the most customizable I’ve found. I am, however, struggling with jQuery errors. the following is showing up currently:

jquery.crellyslider.min.js?ver=1.2.0&nocache=1:11 Uncaught TypeError: Cannot read property ‘concat’ of undefined
at jquery.crellyslider.min.js?ver=1.2.0&nocache=1:11
at jquery.crellyslider.min.js?ver=1.2.0&nocache=1:11
at a (jquery.crellyslider.min.js?ver=1.2.0&nocache=1:11)
at jquery.crellyslider.min.js?ver=1.2.0&nocache=1:11
at jquery.crellyslider.min.js?ver=1.2.0&nocache=1:11
(anonymous) @ jquery.crellyslider.min.js?ver=1.2.0&nocache=1:11
(anonymous) @ jquery.crellyslider.min.js?ver=1.2.0&nocache=1:11
a @ jquery.crellyslider.min.js?ver=1.2.0&nocache=1:11
(anonymous) @ jquery.crellyslider.min.js?ver=1.2.0&nocache=1:11
(anonymous) @ jquery.crellyslider.min.js?ver=1.2.0&nocache=1:11
jquery-migrate-3.0.0.min.js?ver=3.0.0&nocache=1:2 JQMIGRATE: Migrate is installed, version 3.0.0

jquery-3.1.1.min.js?ver=3.1.1&nocache=1:2 Uncaught TypeError: $(…).crellySlider is not a function
at HTMLDocument.<anonymous> ((index):394)
at j (jquery-3.1.1.min.js?ver=3.1.1&nocache=1:2)
at k (jquery-3.1.1.min.js?ver=3.1.1&nocache=1:2)

I’m hoping you can help me because I’d really like to continue using your plugin, like I said, it’s the best!