You can't get LEs on XBox but you should still have an error code on the failed to load message.
Do you remember anything about the message ? The first three numbers maybe ?
I'm guessing something is bugged now with the Sim but finding out what is a bit difficult if you're on console.
There's a bug report for businesses not showing owned anymore here: Business Panel Doesn't Show Owned Businesses | EA Forums - 4956046 but to me sounds that was just a symptom of something else going wrong in your game.
Nevertheless it's probably best if you report your issue there. This is the gameplay issue which is more for players help players then EA looking into your issue.