EndNote 8 crashes on Sierra (10.12.4)

I have the same problem. The program kept freezing with endnote 7.7 so I spent over $100 to upgrade to endote 8 and it is still freezing. I am trying to meet a publication deadline too. This is very, very frustrating. I think we should be reimbursed for whatever additional funds we have had to expend for this. When is endnote going to work. If not soon we need to dump the program.