Yesterday, when you went to a Google+ Local page, which replaced Google Places pages, and clicks from the local page on the company URL, it would take you to a Google 400 error page.
For example, if you clicked on the rustybrick.com URL in my company Google+ local page, it would take you to a 400 error page.
Here is a screen shot to explain it:
When you clicked on it, you were taken to a malformed or illegal request page:
This issue seems to have been resolved as of this morning.
Forum discussion at Google Business Forums.