Vespa 50 gear shift malfunction

Hi,

Need urgent tips for how to fix my Vespa 50s. As I was riding today the gear cable snapped with engine left in 2nd gear. Now the shift lever gets no response and just turns. I have checked and the cable seems to be fully intact as I can feel the cable respond when I locate it and pull down by the engine.

Any ideas on what could be the problem? Would be really grateful for input here ...