Bought the app but inusable since about january 2914

Was awesome, but no longer usable since beginning of this year, have to uninstall re install, re do the inapp purchase....my little one is in tears because this no longer work. Crashing as soon as starting build and play.....bad bad bad...are we back on PC ? ....disapointing as well from apple and the app editor....

Maureenette about Chuggington Traintastic, v1.6