Error always appear....

I have correctly installed the latest version of Ganntproject and the latest version of Java but I always get an error “access denied” (I attach the final part of the very long log.). I can save the file only with “save as”. It’s just annoying to always see the box and not being able to “save” but always having to open the destination folder. Any help is welcome and thank you very much.

I don’t see any log here. Please attach the log file.