INFO: Work block load error: java.lang.RuntimeException: Unable to select a field of at least 3. Availible: []
What does that mean?
It's downloading the 3rd field, you have to wait for it to finish. Or download the torrent.
Which was faster for you?
Just to be clear, the options are generating the snowfields locally (which involve 7 random IO passes and then a bunch of hash calculation work). Those can take a while if not done on an SSD. The torrent should be pretty fast.