Microsoft word is having problem with 'cite while you write' plugin

I’m running endnote X5 to X7 with windows 7 and office 13 but all of a sudden endnote add in started giving error and work stop working and a prompt to disable ths add in appears. I reistalled Endnote as well as office 13 but its still giving the error ‘word has stopped working’ I tried all the suggestions including enabling disabled optons but it dindnt work.

how can I solve this Issue as I’m endng with my ms thesis and this thing is creating problem