You should try to reinstall or restart your device. If that doesn't work, email support@athinkingape.com including your name and game and your issue
I get same error when I tried to buy nobs/xtals whilst logged onto PC account. Kaw told me to clear cache. But it's still the same.
Thanks for letting us know. I've let the developers know and they'll take a look at what's happening here.
It's funny how you can never get a response from ata unless it involves buying nobs lol ! Did you all notice how fast they respond to post like the op?
The nobility offers are managed by Fyber, and so any issues should be reported directly to them from the offer page itself.
I don't they'd care unless someone threatened legal action, though I can't see that going anywhere good.