Thanks for helping me clear things up. I was not really sure how the itch app works with the auto updates. I guess it just updates the game with whatever was uploaded last. Sorry about this.
When I uploaded the legacy file, it must have replaced the latest version with the legacy one. I have just re uploaded the 1.18 so that hopefully itch updates it back to the normal one.
Sorry for the inconvenience. Your save should still be in tact since the legacy version did not have any saving or loading capabilities.