Cubecart & Facebook Integration Problem

I have had facebook integrated within my Cubecart back admin store but it has stopped for some reason. A facebook button was created, so when I finished creating a product within my back admin I can press this button and it would automatically post to my facebook page, this no longer works. Also, when you click on any product within my site to post to my facebook page this function also doesn't work. I believe maybe that the token has expired for facebook and needs to be re-done but I need someone with Cubecart knowledge to check this out and fix it. Only experienced people will be appointed and if previous freelancers who have worked on my site place their bid they will get first dibs. If it is just renewing the token this will take no longer than 15-20 minute job. This is urgent and requires a 24 hour turn around.