alosso:
Did you try to restart the browser or the PC?
It won't help, It is one of those load manager errors where there is a problem with one of the files and it wont load on the web version of the game. Obviously no one can play it on the web version, There is only 1 person on the leader board at this time and that 1 person is me and I just played it on the mobile version after getting the same error message the OP got.