Do you use GOG Galaxy? It says you are playing through Steam, but that error is for GOG. SMAPI needs it for authentication. GOG Galaxy has to be open when you play.
Maybe verify your Steam files. Something might have gotten corrupted.
The following is the original translation,I don't know why,After I updated the SVE version,My game won't open.,I promise that my sinicization is not installed wrongly.,I didn't install multiple farms.,I tried to delete SVE and then re-downloaded,But that doesn't help me.,After that I tried to delete the game body and re-install it.,It's nothing.,But just after I installed SVE,The game won't open again.,I asked on other websites.,They told me to restart the computer and try.,I tried.,It really worked., But every time you quit the game and re-enter the game, you need to restart the computer, otherwise it will crash, and today, when I played online with my friends on the split screen, it was the day of the Flower Dance Festival on the 24th of spring, and the game crashed after the festival ended, and I didn't even have time to archive