/// <summary>
/// Stop the gaming service in a given venue area. Throw an error if the service is not currently active.
/// </summary>
/// <param name="managerId">Manager ID</param>
/// <param name="venueId">Target venue ID</param>
/// <param name="areaId">Target area ID</param>
/// <returns></returns>
public async Task StopGamingService(string managerId, string venueId, string areaId)
{
// Ensure the manager has access to the given service.
await _EnsureManagerCanAccessVenue(managerId, venueId);
// Stop the gaming service.
await _database.StopGamingService(venueId, areaId);
}