Image construction error and quit unexpectedly

Hello everyone, I got this issue with Cubase 11 Pro, that, in some point of my project (everytime in same point, same samples), when I duplicate a block of sample, all sample duplicated starts to show “image construction error”. But differently of other errors that I saw in the forum, those samples starts to preset a gap when reproduced. And few seconds later the cubase just quit and shows the window: Cubase quit unexpectedly.
I tried do delete Image folder from project root, but the error persist. There’s something that i could do to not lost my project? I’m working for a month on this to simple loose it :frowning:
I can paste the error if necessary, but it’s huge.

Thank in advance!

I’m using cubase 11 pro in a Mac trash can, with OS Mojave (10.14.6). 3,7 GHz Quad-Core Intel Xeon E5. 48 GB 1600 MHz DDR3.