I have been able to solve it;
- you have to go to settings/backup (tick ‘one account’) and save the backup file in the storage.
- Log out of your trakt account and log in with your google account
- Restore the backup file you backed up to storage (tick ‘one account’)
- That’s all, The only thing to finish is to go to your profile and press synchronize account, now I have all trakt data migrated to moviebase account and saved in google cloud
