Edit files, buttons don't work

Hi,

Just downloaded your plugin and it seems awesome.
However, I was trying to edit some of my CSS-files and the buttons, search, find next etc don’t seem to work, as nothing happens while clicking them.

It doesn’t prompt, no dialog etc. is open.
Am I doing something wrong?

I’m using your latest update.

Looking forward hearing from you!
//J

https://www.ads-software.com/plugins/wp-editor/