8K doesn't crash when I "change the time" in settings, on my WXP Pro SP3 system. Catalyst 9.2
Having said that, there are lots of ways to have MA3 loaded on your system, and several ways of starting it and/or getting to settings. So, where is your MarineAquarium3.scr file that you're using, and is it "installed", and did you previously use the Installer version?
And then, exact step by step description of what you do to make it crash.
I installed MA3 screen saver with the downloadable zip file and extracted its .scr file into c:\windows\system32\ directory/folder. I don't recall having this problem in an older version from over a month ago (don't remember what version it was).
I used display properties to configure the screen saver. I just pick clock and mess around. Easy to reproduce is clicking on the time to change default 10 seconds to something else.