K.c._Hill Level 2

G2 is where the odd candy is.

I'm using an HP laptop as well as a android phone. It's not working on either device.

I just did what you suggested but still unable to upgrade existing structures.

Freddy Falkner, yes I did use the mugs for upgrading. I now get the message to upgrade other houses in order to move on and I am unable to upgrade any more on level one. I know they aren't fully upgraded but can't do anything with them or advance.