Filename not found

Hi friends at Epic. I’m having issues with my game.
On the Editor, I have no issues at all. However, when I build the game and play for about 5 minutes, I always get a fatal error with “filename not found” followed by some codes.

I have no idea of what I’m doing wrong, can someone enlighten me, please?

Check the following screenshot for more info.

It seems like the issue was resolved by rebuilding the project.