Endnote is being used by someone else. Try opening it again later

Hi, I am getting this messade, athough the endnote is not being used by someone else…

“Endnote is being used by someone else. Try opening it again later”

What can I do?

duplicate posting:  see

http://community.thomsonreuters.com/t5/EndNote-General/This-library-is-being-used-by-someone-else-Try-opening-it-again/m-p/133670/highlight/false#M26054