silly mistake

backend/routes/routesToucan.js

@@ -127,7 +127,7 @@ router.get('/img-dernierToucan', (req, res) => {
             if (err) {res.send(err);} 
             else {
             const id = toucan[0]._id;
-            res.sendFile(path.resolve(img.savedExtensions[1].path,id+".pdf"));
+            res.sendFile(path.resolve(env.savedExtensions[0].path,id));
             }
             });
 });