fix stupid bug lol

index.js

@@ -421,6 +421,7 @@ app.post('/file/upload', upload.single('file'), async (req, res) => {
 
         if(current_connections.length == 0) {
             res.sendStatus(500);
+            return
         }
         // Upload the file to another backend
         const random_client = Math.floor(Math.random() * current_connections.length);