Email contact@mahalo. Com, giving them as much information as possible about what you were doing when and immediately before you received the error.
The only reason I could think of that you may not be able to claim tasks is if you're going for tasks that are above your belt level. For example, the Twitter import tasks are reserved for purple belts and higher. However, if you're trying to claim tasks that are at your level, this may be some sort of bug - as @ssmacd said, your best bet is probably to send an email with all the relevant information.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.