Hi,
I've made a fix on my machine, and it's now pulling the results again just fine. Please see my post on the Alfred Forums below, if you're interested to look into it further. My fix is pretty dirty and primitive, perhaps not taking some things into account, but at least it pulls the results.
https://www.alfredforum.com/topic/3318-discogscom-explorer/page/2/#comments
Cheers!