While you are using Traffic Travis, Google may temporarily block you due to a number of factors. First of all, don't worry—this doesn't affect your sites. However, it will prevent you from using Traffic Travis and Google for an hour or two.
To prevent this in the future, we recommend that you set up some proxies in Traffic Travis by going to File > Program Options > Internet and/or set the Timer Delay (also found in File > Program Options > Internet) higher. The Timer Delay configures how quickly Traffic Travis operates for any queries that need Google. A higher value means Traffic Travis spreads the queries further apart, which reduces your chances of getting blocked (but also slows down your requests).
For more suggestions, see this article.