Celtic Heroes

the game crashes whenever I want to change locations or even when I tried to open my stats screen and lags a bit shortly after I log on with my toon .
I use an iPad 2 with iOs 9
any solution? It can be annoying when heading to a boss

Which version of iOS 9 are you using?

Using such a new OS on an older device may cause performance issues due to increased performance but we are looking into further issues with the 9.3 update.

3.4 I think , I dont have it at the moment