diff --git a/app/src/main/java/com/gamedog/vididin/manager/ZeroManager.kt b/app/src/main/java/com/gamedog/vididin/manager/ZeroManager.kt
index 5cf0c35..5a44359 100644
--- a/app/src/main/java/com/gamedog/vididin/manager/ZeroManager.kt
+++ b/app/src/main/java/com/gamedog/vididin/manager/ZeroManager.kt
@@ -110,10 +110,11 @@ class ZeroManager private constructor() {
         }
     }
 
-    fun getZeroWithdrawItem(zeroItem: ZeroBuyItem): WinZeroWithdrawInfoItem {
+    fun getZeroWithdrawItem(zeroItem: ZeroBuyItem): WinZeroWithdrawInfoItem? {
         try {
             mRecordLocker.lock()
-            return mRecordList.filter { zeroItem.id == it.purchase_id }[0]
+            val matchedList = mRecordList.filter { zeroItem.id == it.purchase_id }
+            return if (matchedList.isNotEmpty()) matchedList[0] else null
         } finally {
             mRecordLocker.unlock()
         }
@@ -273,7 +274,7 @@ class ZeroManager private constructor() {
     fun startWithdrawProcess(activity: Activity, item: ZeroBuyItem) {
         val zeroWithdrawInfoItem = getZeroWithdrawItem(item)
 
-        if (couldStartWithdraw(item)) {
+        if (zeroWithdrawInfoItem != null && couldStartWithdraw(item)) {
             val onConfirmed: (cashNum: Double)->Unit = {
                 requestZeroWithdrawReward(zeroWithdrawInfoItem)
             }
@@ -284,7 +285,7 @@ class ZeroManager private constructor() {
                 WithdrawBindBankDialog(activity = activity, onConfirmed).setWithDrawCashNumStr(zeroWithdrawInfoItem.winCashNumStr!!).show()
             }
         } else {
-            when (zeroWithdrawInfoItem.withdrawState) {
+            when (zeroWithdrawInfoItem?.withdrawState) {
                 TRANSACTION_STATE_ONGOING -> {
                     AndroidUtil.showToast(R.string.claim_reward_onging)
                 }
diff --git a/app/src/main/res/values-pt/strings.xml b/app/src/main/res/values-pt/strings.xml
index 0aee3f1..daff487 100644
--- a/app/src/main/res/values-pt/strings.xml
+++ b/app/src/main/res/values-pt/strings.xml
@@ -51,6 +51,8 @@
     <string name="zero_win_state_failed">Failed</string>
     <string name="zero_win_state_withdrarw_success">Paid</string>
     <string name="no_data_hint">There\'s no any data</string>
+    <string name="claim_reward_onging">This purchase reward claim is ongoing.</string>
+    <string name="has_claimed_reward">You have claimed this reward.</string>
 
 
     <string name="benefit_task_top_hint">Finish all tasks to earn!</string>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 92e9582..2bb158a 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -218,8 +218,8 @@
     <string name="recompensa">Recompensa!</string>
 
     <string name="net_error">Erro de rede</string>
-    <string name="claim_reward_onging">This purchase reward claim is ongoing.</string>
-    <string name="has_claimed_reward">You have claimed this reward.</string>
+    <string name="claim_reward_onging">Recompensa em recepção</string>
+    <string name="has_claimed_reward">Já receberam recompensas</string>
     <string name="game_center">Game Center</string>
     <string name="withdraw_fail_not_reach_condition">Not reach withdraw condition</string>
     <string name="withdraw_fail_already_withdraw">You\'ve already withdrawed</string>