Help with Debug Error

Hi

I am getting the following debug error:
Can you please assist with what I should change to get the plugin working?

Thanks!

Debug Report :
( In-case you see this you have some problem kindly used this data to report me or fix things yourself remember in always here to help. )
exception ‘Exception’ with message ‘GAPI: Failed to request report data. Error: “usageLimitsuserRateLimitExceededUnregUser Rate Limit Exceeded. Please sign uphttps://code.google.com/apis/console”‘ in C:\theLotter\web\TheLotter\Blog\wp-content\plugins\google-analytics-popular-posts\gapi.class.php:218
Stack trace:
#0 C:\theLotter\web\TheLotter\Blog\wp-content\plugins\google-analytics-popular-posts\google-analytics-popular-posts.php(360): gapi->requestReportData(‘17039417’, Array, Array, Array, ‘ga:pagePath=~^/…’, ‘2013-01-28’, ‘2013-05-08’, 1, ‘5’)
#1 C:\theLotter\web\TheLotter\Blog\wp-content\plugins\google-analytics-popular-posts\google-analytics-popular-posts.php(306): GoogleAnalyticsPopularPosts_widget_output()
#2 C:\theLotter\web\TheLotter\Blog\wp-content\plugins\google-analytics-popular-posts\google-analytics-popular-posts.php(268): GoogleAnalyticsPopularPosts_view(true)
#3 [internal function]: GoogleAnalyticsPopularPosts_options(”)
#4 C:\theLotter\web\TheLotter\Blog\wp-includes\plugin.php(406): call_user_func_array(‘GoogleAnalytics…’, Array)
#5 C:\theLotter\web\TheLotter\Blog\wp-admin\admin.php(151): do_action(‘settings_page_g…’)
#6 C:\theLotter\web\TheLotter\Blog\wp-admin\options-general.php(10): require_once(‘C:\theLotter\we…’)
#7 {main}

http://wordpress.org/extend/plugins/google-analytics-popular-posts/