I reached lvl 150 with the intent of receiving 50,000 gold and the game crashed instead. When I logged back in, a new task has appeared in my to do list. No gold was awarded.
My invite code is: eduardo_zzjy
Thanks
Submit ticket, devs will helps you and gives your missing reward.
You can report issues here: https://gemsofwar.zendesk.com/hc/en-us/requests/new or console is also supported by 505Games, and you can submit a ticket to them here: http://support.505games.com/support/tickets/new1
That same thing happened to me. I submitted a ticket and the developers had my back.