Today is my first day using this program, I really like it since it is very easy to use.
I downloaded an example game, I edited only the character, it was all good, I saved, I turned off the PC, then when I returned to continue editing the character when I click on edit it appears: Unexpected Problem

When I click on anywhere in my game / kit I get that error, delete and download the game again, and reinstall the program and continue to appear this annoying error that does not allow me to do anything.
PS: I do not speak English, this was translated with the google translator.