How can I correct a background check error about a felony with an employer?

I applied for a job as a freight clerk at bi mart a month ago. I disclosed two misdemeanors I have. Never heard back from them after the interview. My mom has a friend who knows someone who works there, and she said they didn't hire me because they did a background check and that I have a felony, and I know i dont. I was gonna call the sherrifs office to confirm, but I'd probably need to tell them what's going on, but im pretty sure my moms Friends friend shouldn't be telling me what's going on at the store and I dont want to throw her under the bus.

How can I correct a background check error about a felony with an employer?
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