Are you using a specific (like PESEdit or Smoke Patch), or is this happening on a vanilla version of the game? Load Failure error guides for Rocket League - Epic Games

The words hit harder than a slide tackle from behind. Marcus stared at the screen, his heart sinking. All those hours of scouting youth talent, perfecting the 4-3-3 formation, and clinching last-minute winners—gone.

: If your OS has recently created a restore point, you can right-click the save file in your Documents\KONAMI\Pro Evolution Soccer 2013\save folder and check Properties > Previous Versions to see if an uncorrupted copy exists.

To avoid the heartbreak of the "Blue Screen of Death" for your saves: