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

Coverage is provided in the event of injury or sickness which results in you or an immediate family member being unable to attend the wedding event due to their treating medical practitioner advising them not to attend the wedding event. Please refer to the Policy Wording for exclusions and limitations.
Please note: Section Nine – Personal Liability, is only available for weddings held in Australia.