mac endnote X6 not connecting with pubmed nlm

Dear All, 

I have never had any problem connecting/searching through pubmed in Endnotex6 before, but today when i opened it, I couldn’t find my references. 

The error message is “No matching references found.” (see file attached), while I am sure this search term should produce some results. I susepct it is not connecting to the correct server, and I wonder if this has anything to do with Pubmed server, or a change of the link to the server etc.

Any insights as to why this is happening? on a short time leash here to finish something… thanks!!

Jen Pan