Hey! Sorry for not getting back earlier. I posted a huge update here, but the gist of it is:

We're currently dealing with a tech issue that is preventing you from getting the DLC and updating your game with the new content - and playing using your saves that used DLC data (starting the "Contract: Missing Miners" quest).

The DLCs should be once again available and working by 5pm GMT.

Please refrain from downloading it until then - there is a high probability of it neither downloading nor installing properly. You may have to re-download the DLCs once they're back to working condition.

Watch the thread linked above for further updates!