When i enter it, it only allow me to exchange blue gems, does that change according ot the day or something or is a bug? initially i thought maybe it is that each day they receive another one, but going different days doesn't change it, also the upgrade for the auto trainer brainwashing that need blue crystals say 7499, but i had more that that  and it didn't get buy, i wanna know if i should restart my game or not