What happens if the bride, groom or family member gets sick or injured just before the wedding/ceremony?

What happens if the bride, groom or family member gets sick or injured just before the wedding/ceremony?
Dream Wedding Insurance

Cover is provided if the illness or injury of the bride, groom or immediate family member causes the cancellation or curtailment of the wedding. Please refer to Section 1, page 6 of the Policy Wording for exclusions and limitations.