Five people working on a scaffold Wednesday fell three stories when the structure collapsed.The accident happened at the Sunrise Executive Inn. Police believe the scaffold may have had too much weight on it, causing it to buckle. Police say one victim suffered serious injuries but is expected to survive. The other workers are also recuperating.The site is under investigation by Lynbrook building department inspectors. Lynbrook Village officials have issued a stop work order at the inn until the scene is inspected by the Occupational Safety and Health Administration.