Endnote X7.5 doesn't connect to Word 2016

Hi 

I need urgent help with my EndNote library and its compatibility with Word 2016. 

I have a very big document (150p. with 180 references) and everytime I try to update the library, my word 2016 ( version 25.28) crashes and Word closes down. 

Additionally the CWYR options added a few references with () and otehrs with {} so that it probably cannot even recognize them all when I click for an update of the reference library.

It previously still managed to add new citations without updating the library and performing the selected reference style. But now I cannot even add another citation reference in the text with CWYR without Word crashing and closing completly. 

I have End Note X7.7.1. 

Please help me.