Problem with the Endnote add-in in word

EndNote EndNote Styles, Filters, and Connections
4

I would try the following steps as well:

https://support.clarivate.com/Endnote/s/article/EndNote-Resetting-Word-Preferences?language=en_US

If you still have trouble then

Please contact Technical Support directly
1-800-336-4474 option 4 then 1 or
https://support.clarivate.com/Endnote/s/technicalsupport?language=en_US