Somehow, my screen saver repaired it, now it works again

a screen of my taskbar with cubik

Hey guys, first of all: sorry for my sometimes bad english, i'm from germany

so, if i double-click the CubicStudio.exe, this white screen pops up (normal startup for me) but then, when it disappears, nothing new opens. in my taskbar, the program is started and shows this little preview from win10 ...