run.bat doesn't work --> You'll have to run the jarfile manually:
a. Open a command line / terminal window (on Windows, this can be done by pressing Win+R then typing in "cmd")
b. Type "java -jar [editor-filepath], where "editor-filepath" is the filepath of the folder with DragaliaSaveEditor.jar" (ex: "java -jar C:\Users\user\Desktop\DragaliaSaveEditor_11.3\DragaliaSaveEditor.jar")