diff --git a/trade_checker.js b/trade_checker.js
index ef2d5a9..9406ce2 100644
--- a/trade_checker.js
+++ b/trade_checker.js
@@ -50,7 +50,7 @@ class TradeChecker {
             final_amount += key_count * this.MONTH
 
         if(metal_count >= this.prices_map["week"])
-            final_amount += (metal_count / self.prices_map["week"]) * this.WEEK;
+            final_amount += (metal_count / this.prices_map["week"]) * this.WEEK;
         else if(metal_count >= this.prices_map["day"])
             final_amount += (metal_count / this.prices_map["day"]) * this.DAY;
 
diff --git a/tradebot.js b/tradebot.js
index 5d57b38..5aaff92 100644
--- a/tradebot.js
+++ b/tradebot.js
@@ -113,7 +113,11 @@ function setupClient() {
         if (calculate(offer)) {
             console.log(consoleTime(), `[${offer.id}] Try accept trade`);
             offer.accept(false, function(error, status) {
-                if (error.message === "Not Logged In") {
+                if (error == null) {
+                    console.log(consoleTime(), "Success accept trade");
+                    return;
+                }
+                if ("message" in error && error.message === "Not Logged In") {
                     console.log(consoleTime(), "Need relog to accept");
                     client.relog();
                 } else {
@@ -123,7 +127,11 @@ function setupClient() {
         } else {
             console.log(consoleTime(), `[${offer.id}] Try decline trade`);
             offer.decline(function(error, status) {
-                if (error.message === "Not Logged In") {
+                if (error == null) {
+                    console.log(consoleTime(), "Success decline trade");
+                    return;
+                }
+                if ("message" in error && error.message === "Not Logged In") {
                     console.log(consoleTime(), "Need relog to decline");
                     client.relog();
                 } else {