Prevented the bug where the application is crashing

src/pages/api/stats/[id]/index.ts

@@ -18,6 +18,7 @@ async function GET(req: NextApiRequest, res: NextApiResponse) {
 	const {id} = req.query;
 
 	const snapshot = await getDoc(doc(db, "stats", id as string));
+	if (!snapshot.exists()) return res.status(404).json({id: snapshot.id});
 
 	res.status(200).json({...snapshot.data(), id: snapshot.id});
-}
+}