Update kucoin.js
diff --git a/js/kucoin.js b/js/kucoin.js
index c686b664daa8..03a0ef13fc01 100644
--- a/js/kucoin.js
+++ b/js/kucoin.js
@@ -234,7 +234,7 @@ module.exports = class kucoin extends Exchange {
                         'orders': 1.3953,
                         'stopOrders': 1.3953,
                         'recentDoneOrders': 1.3953,
-                        'orders/{order-id}': 1.3953, // ?clientOid={client-order-id} // get order by orderId
+                        'orders/{orderId}': 1.3953, // ?clientOid={client-orderId} // get order by orderId
                         'orders/byClientOid': 1.3953, // ?clientOid=eresc138b21023a909e5ad59 // get order by clientOid
                         'fills': 6.666, // 9 requests per 3 seconds = 3 per second => cost = 20/3 = 6.666
                         'recentFills': 6.666, // 9 requests per 3 seconds = 3 per second => cost = 20/3 = 6.666
@@ -254,7 +254,7 @@ module.exports = class kucoin extends Exchange {
                     'delete': {
                         'withdrawals/{withdrawalId}': 1.3953,
                         'cancel/transfer-out': 1.3953,
-                        'orders/{order-id}': 1.3953, // 40 requests per 3 seconds = 14.333 per second => cost = 20/14.333 = 1.395
+                        'orders/{orderId}': 1.3953, // 40 requests per 3 seconds = 14.333 per second => cost = 20/14.333 = 1.395
                         'orders': 6.666, // 9 requests per 3 seconds = 3 per second => cost = 20/3 = 6.666
                         'stopOrders': 1.3953,
                     },

It seems the order-id here should be orderId to fix this issue https://github.com/ccxt/ccxt/issues/13541