There are two fails here.
I play the game from 2014 and people were asking to play TE without fb so nordeus added the option to play with g account.
Then FA started, million g accounts created also to take advantage on some tricks (loans, friendlies, nego-mutants).
Every month we had update and there it was that many bugs started.
The second fail is that this event should be a permanant feature, not to join and claim every season.
Also should give 10 tokens as a prize like as it started.