While using Dialux Evo 13.1 I encountered the following error.

The project in which I encountered the error is still in the early stages, so it has very few elements, but I have encountered the same problem, repeated several times, even on more elaborate projects and in a greater state of progress.

I don't know how to fix it, but it is a situation that is causing me a lot of work discomfort because I often cannot save files, except after many attempts, or sudden crashes of the program occur.