How do I transfer data to another device?

I've changed my device to a new one and lost my game data. How do I recover my old game data?

How do I cancel synced data?

How do I change the language setting?

Can I play with the same data after changing devices?

Can I transfer data to a different OS?

I have Dreamballs, but can't use a Transfer. Why?

I cannot enter the shop (the game does not progress beyond "Now Loading")

Game crashed or froze.

I lost a player. What should I do?

Can I transfer data between the Japanese version and other language versions?

An error is displayed and I can't purchase items.

The game won't start. What should I do?

What time do Daily Missions and Login Bonuses update?

I lost connection and lost the game.

How do I know if "Insight Master" is active?

I didn't receive various Rewards.

You do not have enough free space is displayed and nothing happens. What should I do?

I'm not getting a reply from customer support.

How do I remove a Main Special Skill?