Started great, ending badly

I have been enjoying this game since the start and have been playing for a long time. Unfortunately, after a while, they just started re-doing the same challenges and now, I cant seem to finish anything the requires objectives are not given. I have been playing challenges for a long time and they will not give out the required items. I will be walking away from this game shortly. Its too bad, I really use to love it.

Eric-jetman about Airport City Manager Simulator, v2.07