Hi,
Please make sure the Lexicon plug-ins are up to date and your iLok PACE driver is up to dat too, please.
Do you know, when was the latest Lexicon update released, please? There was an important fix in PACE iLok software for full compatibility with Windows 10 last year (If I remember right). All plug-ins developers should update their plug-ins and update this part of iLok/PACE in it. Unfortunately some manufacturers didn’t do it which can cause a crash.