have a look at your console.
there’s a ton of this going on (and there appears to be some timeout/loop)
GET https://ovxhzewtey.spotilocal.com:4370/service/version.json?service=remote&ref=http%3A%2F%2Ffronda.se%2F&cors= net::ERR_CONNECTION_REFUSED md.294dffe.js:508
GET https://ovxhzewtey.spotilocal.com:4371/service/version.json?service=remote&ref=http%3A%2F%2Ffronda.se%2F&cors= net::ERR_CONNECTION_REFUSED md.294dffe.js:508
as well as
Uncaught TypeError: Cannot read property ‘addEventListener’ of null
maybe that causes problems, maybe not (althought that CONNECTION_REFUSED could hint at some issue
the plugin uses curl to get the data from itunes, and stores it in the cache directory of the plugin.
make sure its writeable to start off with and you dont get any server errors as to it not being writable for example or some connections refused etc etc
turn on debug in WP and see what the debug.log says, maybe that will shed some light on it
maybe your host has also disabled curl now ? who knows