Use Google Analytic for better result, in last few months statcounter having a problem to find out visitors path and keywords analysis and if you contact them and address your issue then they ll refer you to get premium account.
I read somewhere the site was down, its always a good idea to have another counter/analytics on your site like I do and use gostats.
People always suggest to change the meter to get a better result. But more or less, the results indication remains the same most of the times. Maybe end of the month or a new month could be a reason here. Sometimes it happens just like the bad weather thing. So, don't lose hope. Think big, dream big.
Faced data loss issue with it and also most stats were available in pro one so I moved to gostats and I have been more than happy.