Hello,
I visited your site with ?lang=nb
and looked at the source and I see the Quick Cache notes there:
<!-- Quick Cache file built for (https://<retracted>/?lang=nb) in 1.11117 seconds, on: Mar 27th, 2014 @ 2:13 pm UTC. -->
<!-- This Quick Cache file will auto-expire (and be rebuilt) on: Apr 3rd, 2014 @ 2:13 pm UTC (based on your configured expiration time). -->
<!-- +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
<!-- Quick Cache fully functional :-) Cache file served for (https://<retracted>/?lang=nb) in 0.00051 seconds, on: Mar 27th, 2014 @ 2:49 pm UTC. -->
That tells me that Quick Cache is running just fine.
I see now that you already marked this topic as resolved, so I’m going to assume that you fixed it.