I've been playing on a Minecraft world (1.15.2 Java edition) for quite a while and one day I tried to open that world but just after the chunks loaded, my laptop crashed. I went back on to Minecraft and my world wasn't in the world list. I looked this up on Google and everyone said to check my saves folder. I did this but my world wasn't there. I haven't ever made a backup of the world because I didn't think a problem like this was likely. I've spent hours on this world. Can someone please help?