Right, so your Mac has a particular graphics adaptor, the Intel HD5000, that appears to have a bug in its Metal driver and which causes Dorico to crash.
The thing I asked you to try earlier on in the Terminal wasn’t quite right: it needs to be followed directly by the command to run Dorico itself, which looks like this:
env QSG_RHI_BACKEND=”opengl” /Applications/Dorico\ 5.app/Contents/MacOS/Dorico\ 5
Try pasting that into the Terminal and see if that allows Dorico to run.