Hi,
If you tried using a new transfer code following our recent update, and received an Error 101 prompt, it means you’ve already used the Link a device feature before. I’m very sorry, but the transfer code can only be used once for connecting a village across iOS and Android.
Please keep in mind, after transferring your account once, it will remain permanently linked to the two Google play and Game Center accounts used in the process.
Of course, I am sorry again for the inconvenience. Furthermore, always remember to log into the same Game Center or Google Play accounts for consistent saved data!
Clash on!