Endnote x9 crash word 365 in win 10

I use win 10. Word 365 sucription bring me Office 16 (or Office 2019). I install Endnote X9 and then Word does not open at all, even in safe mode. When I uninstall Endnote, Word works normally again.

Could anyone suggest what is the problem? Does that mean Endnote X9 is not compatible with Word 2019 (they say it does). Or the problem lies elsewhere? Should I install lower version?

Thanks a lot

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