Can't open project file

Hi everyone
yesterday I created a Cubase project (with version 12, latest release available) and on a track I used the Spectralizer extension as an audio editor to extract a voice…
I worked on it and saved it.

now I tried to reopen the file and both Cubase 12 and Cubase 13 are unable to open it…

They close when loading, and after a few attempts they give an error message

This is the creash log for Cubase 12:
Cubase 13.0.10 64bit2023.11.15 (1.1 MB)

This is the crash log for Cubase 13:
Cubase 64bit 2023.11.15 (1.0 MB)

Can someone help me?

as you can see the crash is caused by spectralizer
Immagine 2023-11-15 013032