Cuase11 11 Pro crashes on startup

I’m having a problem with Cubase Pro 11 crashing on start-up I have moved the preferences folder to the desktop but it still crashes. I’m guessing it’s a plugin that’s playing up? I’ve also tried “deactivating all third-party plugins” but that hasn’t helped either. I have a copy of the crash log. Any help would be gratefully appreciated.

Regards Gerry.

Imac 27inch (late 2012) 3.4Ghz i7, 32gig ram,
OSX 10.14.6 Cubase Pro 11.41.448 /VEPro 5