Koikatsu is a 32-bit application by default, which limits its RAM usage and leads to "Out of Memory" crashes, especially with high-resolution texture mods.
If the game crashes specifically when loading a character or a scene, a specific plugin is likely the culprit.
Delete the BepInEx/config folder (back it up first) and restart the game to let it regenerate default settings. 2. Check for Plugin Conflicts
The game relies on specific Windows libraries that may be corrupted or missing.
Remove half of your plugins from the BepInEx/plugins folder. If the crash stops, the issue is in the removed half. Repeat until you find the specific file.
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Navigate to and click Verify Integrity of Game Files . Note: This will likely break many mods, so you may need to reinstall your modpack or BepInEx after doing this.