It looks like some type of corrupted data was sent to the database by you or someone else that had your password.
Your deck contains card codes that do not exist in the game. The backup database goes back to June the 3rd, but your data was already gone there as well.
I'll try to repair what I can, please try to log in in an hour and I would also strongly suggest to pick a stronger password.
Update: all I could do was give you the amount of electrum an nymphs that a player statistically has after playing for as long as you did. You'll still have to gain your rare cards back but I guess this is better than re-starting from zero.