cubase 9.0.30 crashes often

Hi, I’m finding that Cubase 9.0.30 crashes often when opening up new projects. I close one, open another and it crashes. I restart and it’s OK, sometimes it will crash on closing, sometimes it crashes when opening new projects. Not sure why and it just started happening recently. Too many crashes.
I am using a Mac, external hard drive for media files and samples. Never had many crashes at all, but now it’s very annoying.
Any suggestions?
ER Productions

Hi and welcome,

Make sure your plug-ins are up-to-date, please.

You can share the *.crash files (you can find them in the macOS Console utility).