**The safest choice is to throw it out.** [Mrs. Richardson’s](https://mrsrichardsons.com/about/faqs/) says its sauces require refrigeration after opening. An overnight stay on the counter exceeds the FDA’s general two-hour limit for foods needing refrigeration.

I can’t confirm that your jar has spoiled, but a normal smell or appearance cannot establish that it’s safe. Don’t taste it to check. ([FDA food-storage guidance](https://www.fda.gov/consumers/consumer-updates/are-you-storing-food-safely))