Add Media button not working…

When I’m logging into my dashboard and try to Add a new post, certain buttons are not working. My site was working fine yesterday, and I’ve made no changes or updates.

If I click a button like Add Media… nothing happens. No pop up opens.

I have the latest version of wordpress. I’ve enabled debug and that didn’t help.

With debut enabled I found these errors:

Uncaught TypeError: Cannot read property ‘msie’ of undefined
at jquery.maskedinput.js?ver=1.3:7
at jquery.maskedinput.js?ver=1.3:7
(anonymous) @ jquery.maskedinput.js?ver=1.3:7
(anonymous) @ jquery.maskedinput.js?ver=1.3:7
woo-medialibrary-uploader.js?ver=5.5:19 Uncaught TypeError: $(…).live is not a function
at Object.removeFile (woo-medialibrary-uploader.js?ver=5.5:19)
at HTMLDocument.<anonymous> (woo-medialibrary-uploader.js?ver=5.5:151)
at i (jquery.js:2)
at Object.fireWith [as resolveWith] (jquery.js:2)
at Function.ready (jquery.js:2)
at HTMLDocument.J (jquery.js:2)
removeFile @ woo-medialibrary-uploader.js?ver=5.5:19
(anonymous) @ woo-medialibrary-uploader.js?ver=5.5:151
i @ jquery.js:2
fireWith @ jquery.js:2
ready @ jquery.js:2
J @ jquery.js:2
wp-auth-check.js:151 Uncaught TypeError: Cannot read property ‘hasClass’ of undefined
at HTMLDocument.<anonymous> (wp-auth-check.js:151)
at HTMLDocument.dispatch (jquery.js:3)
at HTMLDocument.r.handle (jquery.js:3)
at Object.trigger (jquery.js:3)
at HTMLDocument.<anonymous> (jquery.js:3)
at Function.each (jquery.js:2)
at n.fn.init.each (jquery.js:2)
at n.fn.init.trigger (jquery.js:3)
at Object.<anonymous> (heartbeat.js:456)
at i (jquery.js:2)

Any idea on where this issue is coming from.