There seems to be an issue with Zimbabwe-voter registration 1938-1973, I can not check out any to review
We just checked one out so the problem is not with the project. It is possible it is restricted. Since there are very few indexed at this minute is it possible there were none to review when you tried?
Exactly what happens when you attempt to check out a batch?
We see that you do have one batch checked out to index? Is your issue solved?