Issue with crash of the engine when I try to open my level

"Failed to open map file. This is most likely because the map was saved with a newer version of the engine." This is the message I get when ever I open my levels does anyone have any ideas on what’s wrong if so please help me out. Also when this error comes up it deletes my level that I tried to open so if you could help me with that to that would be great thx. :confused: