you need to delete the data in Summoned by Accident AppData folder. The process to get there can be a little obtuse but the file path should be (C:\Users\Username\AppData\Roaming\RenPy\SummonedByAccident-123456789[or whatever version you're using]). deleting the data in that specific folder should reset all save data and settings. However the AppData folder can become hidden and difficult to navigate to, in that case you should look up a tutorial for your system. Be careful not to delete anytrhing other than the data in that folder though. Hope this helps.