This yellow spot appeared 3 days ago. What should I do?

Plant RN

So you bought a beautiful, healthy plant. But now its looking sad and having symptoms of distress. The plant RN is on call 24/7! Just send a clear photo of the problem you’re experiencing to 253-320-3588. Please indicate if you’d like a response via text or phone call. A reply with helpful recommendations will be sent within 24 hours.