I clicked to do a 10 pull, got to the pull, and the game crashed to desktop. I opened it up again and the gems are gone and no new characters. Is there a way to get it back or is it just gone?

A follow up question since I'm making the post anyway - which character would you start with if you were to restart now? I've got about 30 minutes of playtime on this account and just lost 50 gems, so I might just reroll. I've seen mentions of int kuma - is he the go to guy now, or are there better choices?