Not updating addons - stuck on the Updating action

[binkenstein]

Tried updating some addons this morning and it freezes on the update/download stage.

Looks like it's related to this error from the log

[2015-02-08 08:29:28.SEVERE com.zam.minion.util.DownloadManager lambda$null$246 DownloadService (update) failed: {0}
java.lang.NullPointerException
at com.zam.minion.service.DownloadService$1.call(DownloadService.java:138)
at com.zam.minion.service.DownloadService$1.call(DownloadService.java:80)
at javafx.concurrent.Task$TaskCallable.call(Task.java:1409)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at javafx.concurrent.Service.lambda$null$436(Service.java:718)
at javafx.concurrent.Service$$Lambda$446/797388824.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at javafx.concurrent.Service.lambda$executeTask$437(Service.java:717)
at javafx.concurrent.Service$$Lambda$443/408167048.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)

[2015-02-08 08:29:28.FINE com.zam.minion.util.DownloadManager lambda$startUpdater$245 PreTake - DownloadQueue size: 0