Sometimes the game will reload whilst you are playing.
It can be due to a few reasons:

1) Your internet connection speed / type
2) Too many applications running in the background of your device.
3) Issues with something you were doing inside the game

You recommend being on a stable WIFI connection and having the latest version of the game to minimalize the amount of times this happens to you.

We are constantly working hard on reducing these types of issues from happening to our players.
If you do wish to send us a ticket in regards to this, please provide us with as much detail as possible:

- What you were doing then this happened to you
- If this happens every time you try to do the same task
- Any other information that could help us find a solution faster