I have a Babybrezza Formula Pro, the machine is beeping and will not dispense. What is the issue?

Reassemble the powder container, empty the water tank and refill with water temperature, engage funnel and/or funnel cover or Remove powder container, manually press on lid switch then start; if still beeping, replace machine; if not beeping, put on powder container without lid and manually press on actuator then press start; if beeping, replace powder container; if not beeping, reengage lid - if beeping, replace lid