The errors seem unrelated. In case of the first host the Client isn't even able to start the App. Possibly resetting the project there might help.
On your machine the App crashes with a segfault, soon after being started, on your last reported tasks. Check if anything had changed during the past day (security update? room temperature?). Have a try with another App (official 4.37) if the problem persists and you can't find a reason.
In any case this doesn't have anything to do with the workunits. They are not different from all the others of that series.
BM
