diff --git a/backend/mpc-system/services/service-party-android/app/src/main/java/com/durian/tssparty/presentation/viewmodel/MainViewModel.kt b/backend/mpc-system/services/service-party-android/app/src/main/java/com/durian/tssparty/presentation/viewmodel/MainViewModel.kt
index 0afbf2d8..ff96c47f 100644
--- a/backend/mpc-system/services/service-party-android/app/src/main/java/com/durian/tssparty/presentation/viewmodel/MainViewModel.kt
+++ b/backend/mpc-system/services/service-party-android/app/src/main/java/com/durian/tssparty/presentation/viewmodel/MainViewModel.kt
@@ -395,7 +395,7 @@ class MainViewModel @Inject constructor(
                     val currentSessionId = _currentSessionId.value
                     if (currentSessionId != null && event.sessionId == currentSessionId) {
                         android.util.Log.d("MainViewModel", "Session started event for keygen initiator, triggering keygen")
-                        viewModelScope.launch {
+                        safeLaunch {
                             startKeygenAsInitiator(
                                 sessionId = currentSessionId,
                                 thresholdT = event.thresholdT,
@@ -717,7 +717,7 @@ class MainViewModel @Inject constructor(
     private fun startKeygenAsJoiner() {
         val joinInfo = pendingJoinKeygenInfo ?: return
 
-        viewModelScope.launch {
+        safeLaunch {
             _uiState.update { it.copy(isLoading = true, error = null) }
 
             android.util.Log.d("MainViewModel", "Starting keygen as joiner: sessionId=${joinInfo.sessionId}, partyIndex=${joinInfo.partyIndex}")
@@ -795,7 +795,7 @@ class MainViewModel @Inject constructor(
      * Matches Electron's cosign:validateInviteCode - returns sessionInfo + joinToken + parties
      */
     fun validateSignInviteCode(inviteCode: String) {
-        viewModelScope.launch {
+        safeLaunch {
             _uiState.update { it.copy(isLoading = true, error = null) }
             pendingCoSignInviteCode = inviteCode
 
@@ -905,7 +905,7 @@ class MainViewModel @Inject constructor(
     private fun startSignAsJoiner() {
         val signInfo = pendingJoinSignInfo ?: return
 
-        viewModelScope.launch {
+        safeLaunch {
             _uiState.update { it.copy(isLoading = true, error = null) }
 
             android.util.Log.d("MainViewModel", "Starting sign as joiner: sessionId=${signInfo.sessionId}, partyIndex=${signInfo.partyIndex}")
@@ -969,7 +969,7 @@ class MainViewModel @Inject constructor(
      * Delete a share
      */
     fun deleteShare(id: Long) {
-        viewModelScope.launch {
+        safeLaunch {
             repository.deleteShare(id)
             // Update wallet count
             _appState.update { state ->
@@ -997,7 +997,7 @@ class MainViewModel @Inject constructor(
      * 加载钱包的交易记录
      */
     fun loadTransactionRecords(shareId: Long) {
-        viewModelScope.launch {
+        safeLaunch {
             repository.getTransactionRecords(shareId).collect { records ->
                 _transactionRecords.value = records
             }
@@ -1009,7 +1009,7 @@ class MainViewModel @Inject constructor(
      * 首次导入钱包时调用
      */
     fun syncTransactionHistory(shareId: Long, address: String) {
-        viewModelScope.launch {
+        safeLaunch {
             _isSyncingHistory.value = true
             android.util.Log.d("MainViewModel", "[SYNC] Starting transaction history sync for $address")
 
@@ -1040,7 +1040,7 @@ class MainViewModel @Inject constructor(
      * 应用启动时调用
      */
     fun confirmPendingTransactions() {
-        viewModelScope.launch {
+        safeLaunch {
             val rpcUrl = _settings.value.kavaRpcUrl
             val pendingRecords = repository.getPendingTransactions()
             android.util.Log.d("MainViewModel", "[TX-CONFIRM] Found ${pendingRecords.size} pending transactions")
@@ -1181,7 +1181,7 @@ class MainViewModel @Inject constructor(
      * Test Message Router connection
      */
     fun testMessageRouter(serverUrl: String) {
-        viewModelScope.launch {
+        safeLaunch {
             _messageRouterTestResult.value = null
             val result = repository.testMessageRouter(serverUrl)
             result.fold(
@@ -1206,7 +1206,7 @@ class MainViewModel @Inject constructor(
      * Test Account Service connection
      */
     fun testAccountService(serviceUrl: String) {
-        viewModelScope.launch {
+        safeLaunch {
             _accountServiceTestResult.value = null
             val result = repository.testAccountService(serviceUrl)
             result.fold(
@@ -1231,7 +1231,7 @@ class MainViewModel @Inject constructor(
      * Test Kava API connection
      */
     fun testKavaApi(rpcUrl: String) {
-        viewModelScope.launch {
+        safeLaunch {
             _kavaApiTestResult.value = null
             val result = repository.testKavaApi(rpcUrl)
             result.fold(
@@ -1286,7 +1286,7 @@ class MainViewModel @Inject constructor(
      * Now fetches both KAVA and Green Points (绿积分) balances
      */
     fun fetchBalanceForShare(share: ShareRecord) {
-        viewModelScope.launch {
+        safeLaunch {
             val rpcUrl = _settings.value.kavaRpcUrl
             // Ensure we use EVM address format for RPC calls
             val evmAddress = AddressUtils.getEvmAddress(share.address, share.publicKey)
@@ -1306,7 +1306,7 @@ class MainViewModel @Inject constructor(
      * Fetch balance for a wallet address (for already-EVM addresses)
      */
     fun fetchBalance(address: String) {
-        viewModelScope.launch {
+        safeLaunch {
             val rpcUrl = _settings.value.kavaRpcUrl
             val result = repository.getWalletBalance(address, rpcUrl)
             result.onSuccess { walletBalance ->
@@ -1320,7 +1320,7 @@ class MainViewModel @Inject constructor(
      * Fetch balances for all wallets
      */
     fun fetchAllBalances() {
-        viewModelScope.launch {
+        safeLaunch {
             shares.value.forEach { share ->
                 fetchBalanceForShare(share)
             }