Minecraft says world is corrupted

I don't really understand how to read logs, but Minecraft says my world is corrupted. In the RPCS3 output on the bottom panel of the window, it said something about some sort of files that appear to be textures, and it said something about it failing to emount. Does this mean my world is actually corrupted, or is there something else that's causing the error? And if my world is not actually corrupt, how can I export it?