I have a very bad tiny tower construction bug!!! Plz help!!!?

K, so I have been playing tiny tower, and I had two floors under construction, and I had to wait 19 hours for them to be built, and I did, but then when I checked again, it still said 19 hours! So then I started trying to fix it, and I pressed a little yellow button with a pic of construction in the top right corner of my construction sites, and then it disappeared. Then I tapped the construction site, and then it said: construction, in stock: 900, 2 bux to quick sell. It was actin like construction was an object in stock. And the time for the construction isn't going down, and I don't know what to do. Please help me!!!!!!!!! Thanks so much!