The error is:- Error Caught exception Execution time (s) 0.20 Peak memory usage (kB) 25,926 Error message Caught exception Execution status Error log [string ""]:514: attempt to index field '?' (a nil value) Script output prep done.
This only seems to happen using my username as I have tried the same checker with different usernames and the ones I have tried all work fine. It is also the only checker I have tried which replies with an error message. I know that I do not yet qualify for the challenge having visited only 3 countries, but would expect that the checker would return a message which indicates what I have and what I still need.