diff --git a/server/marketserver/mt/RechargeCurrency.go b/server/marketserver/mt/RechargeCurrency.go
index 59311e2e..b0e3aed6 100644
--- a/server/marketserver/mt/RechargeCurrency.go
+++ b/server/marketserver/mt/RechargeCurrency.go
@@ -13,6 +13,11 @@ type RechargeCurrency struct {
 	currencyDecimal int64
 }
 
+type RechargeCurrencyTable struct {
+	f5.CustomMetaTable
+	netIdHash *q5.ConcurrentMap[int64, *RechargeCurrency]
+}
+
 func (this *RechargeCurrency) init(currencyName string, exchangeRate int64, currencyDecimal int64) {
 	this.currencyName = currencyName
 	this.exchangeRate = exchangeRate
@@ -31,11 +36,7 @@ func (this *RechargeCurrency) GetCurrencyDecimal() int64 {
 	return this.currencyDecimal
 }
 
-type RechargeCurrencyTable struct {
-	f5.CustomMetaTable
-}
-
-func (this *RechargeCurrency) Init1() {
+func (this *RechargeCurrency) check() {
 	if this.GetExchangeRate() <= 0 {
 		panic("RechargeCurrency exchange_rate <= 0")
 		return
@@ -59,6 +60,7 @@ func (this *RechargeCurrencyTable) Get(netId int32) *RechargeCurrency {
 }
 
 func (this *RechargeCurrencyTable) Load() {
+	this.netIdHash = new(q5.ConcurrentMap[int64, *RechargeCurrency])
 	nets := []int64{}
 	{
 		if jsonStr, err := f5.ReadJsonFile("../config/nets.json"); err == nil {