WordPress Site Stats does not show the reference of the Visitors correctly

Hi,

I have two wordpress blog on my website.

the first one is https://yoursn0w.com and this one is working fine on the Site stats plug in that I have all the references that come from which ever website it shows all of them and I think that is perfect.

but the other one https://th.yoursn0w.com the problem is no longer show from the other site except just like 5 of them like Facebook. Google+. and three other which I believe I have more than that because the traffic coming to my website over 2000 a day and if I count is only say 300 from the refer so I don’t think like another 1700 is a direct visitors.

so is there anyway to fix this problem? because I tried do the page cache, remove and install the plugin again and nothing help.

Thanks