Rough. Not much to go on. Ok, there's a couple of things I can think of.its happens before the game can actually load
I don't think it's this because it doesn't make a difference on my system, but as usual with Japanese games, make sure your system locale, under "Language for non-Unicode programs" is set to Japanese. A quick google search should give you an idea of how to do it
Try redownloading the game from wherever you got it to make sure the files aren't corrupted. Or try a different source. I can kind of tell by the folder name that it's not from dlsite lol
Finally, try going into C:\Users\<username>\Appdata\Local and deleting the "flowerwitch" folder. When I think about it, it's probably not that either... but maybe something messed up while the game was trying to generate its default config file.
That looks like a laptop you're running on, does it have a dedicated GPU, and how decent is it specs-wise? It's a long shot but it might be outdated graphics drivers, or the gpu just can't run this game. Can you try getting a copy of and running misinkoujou's last game, Flower Fairy? It's pretty much the same engine as this game.
If none of that works out I'll DM the dev but it's still not a lot to go on.