sync error on win8.1 64bit

My endnote version is x7.1 running on the win8.1 64bit system in China, the endnote can upload my local reference data file to the web server,but cannot download the data when I have two computer need to sync. 

In another computer I create a new library, and then sync to my account, but an error occurred, the error code is:Low Memory.

This really trouble me causing when i change my library in one compute, the other computer can nerver get the correct sync, please help me.

is there anyone have same problem here?