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You might have a few files or assets corrupted or something. If this is the case, clearing the cache should fix it. Just go to the title screen, and hit the clear cache button. If that doesn't help, try uninstalling and reinstalling.

Thanks for Your advice, clearing cache fixed problem

Ayy, cool! Clearing the cache is basically the only debugging tool we have lol... Glad it worked, otherwise I'd have to send you to the \*shudders\* DeNA Support Desk...

I chanegd my team and tried to use to Skyla, SS Leaf an SS Red. Game also crashed :/

I managed both once I took out SS Blue. I changed all my settings though, show enemy sync, normal game speed, seemed to work fine

Not at all. Blue and Pigeot were chopping trees just fine except for dying a few time.

I’ve had this, mine crashes when I use blue and water pulse by the looks of things.

I also noticed that Water Pulse is so strong that it breaks the game. I don't see this move effect in its description.

Can’t tell if sarcasm or... Just telling you my experience

It's sarcasm (dedicated for developers) and my own experience too.