there is LOTS of help in the VV3 Guide...look near the bottom of the "Forum List" page.

MINI SPOILER BELOW:





Have you repaired the broken machine yet? If not, keep searching for mushrooms til you can fix it. (Your villagers are hardier than you might think!) You'll need 3 adept builders to repair machine but it only takes a minute. Then you can figure out what to do with the machine, or keep checking the Guides for more detailed help. Good Luck!