diff --git a/go.mod b/go.mod
index 1776a07..cb20615 100644
--- a/go.mod
+++ b/go.mod
@@ -7,6 +7,7 @@ require (
 	github.com/creasty/defaults v1.5.2
 	github.com/electricbubble/gidevice v0.6.2
 	github.com/fatih/color v1.9.0
+	github.com/ggwhite/go-masker/v2 v2.1.0
 	github.com/glebarez/sqlite v1.11.0
 	github.com/go-errors/errors v1.5.1
 	github.com/go-resty/resty/v2 v2.6.0
diff --git a/go.sum b/go.sum
index fc95026..ec9609b 100644
--- a/go.sum
+++ b/go.sum
@@ -131,6 +131,8 @@ github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMo
 github.com/fsnotify/fsnotify v1.4.9/go.mod h1:znqG4EE+3YCdAaPaxE2ZRY/06pZUdp0tY4IgpuI1SZQ=
 github.com/fsnotify/fsnotify v1.6.0 h1:n+5WquG0fcWoWp6xPWfHdbskMCQaFnG6PfBrh1Ky4HY=
 github.com/fsnotify/fsnotify v1.6.0/go.mod h1:sl3t1tCWJFWoRz9R8WJCbQihKKwmorjAbSClcnxKAGw=
+github.com/ggwhite/go-masker/v2 v2.1.0 h1:tmpVa2dWjgzdmlLDFBBWlJ/KkzdT3snd2QmFcR9qk+c=
+github.com/ggwhite/go-masker/v2 v2.1.0/go.mod h1:Xky8hDSkBwV7pwCJvFsJaiFVwU9GCt0yIAx6yuAc6xY=
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
 github.com/glebarez/go-sqlite v1.21.2 h1:3a6LFC4sKahUunAmynQKLZceZCOzUthkRkEAl9gAXWo=
 github.com/glebarez/go-sqlite v1.21.2/go.mod h1:sfxdZyhQjTM2Wry3gVYWaW072Ri1WMdWJi0k6+3382k=
diff --git a/internal/manager/install_manager.go b/internal/manager/install_manager.go
index cffd6a4..0374950 100644
--- a/internal/manager/install_manager.go
+++ b/internal/manager/install_manager.go
@@ -139,8 +139,12 @@ func (t *InstallManager) OutputLog() string {
 	return t.outputStdout.String()
 }
 
-func (t *InstallManager) WriteLog(id uint) {
-	data := t.OutputLog()
+func (t *InstallManager) WriteLog(msg string) {
+	t.outputStdout.Write([]byte(msg))
+}
+
+func (t *InstallManager) SaveLog(id uint) {
+	data := t.OutputLog() + t.ErrorLog()
 
 	// Hide log password string
 	// data = strings.Replace(data, v.Password, "******", -1)
diff --git a/internal/model/installed_app.go b/internal/model/installed_app.go
index 3c62e01..17d2568 100644
--- a/internal/model/installed_app.go
+++ b/internal/model/installed_app.go
@@ -4,6 +4,7 @@ import (
 	"encoding/json"
 	"time"
 
+	masker "github.com/ggwhite/go-masker/v2"
 	"gorm.io/gorm"
 )
 
@@ -37,3 +38,8 @@ func (t InstalledApp) MarshalJSON() ([]byte, error) {
 		Password: "",
 	})
 }
+
+func (t InstalledApp) MaskAccount() string {
+	m := masker.EmailMasker{}
+	return m.Marshal("*", t.Account)
+}
diff --git a/internal/service/websocket.go b/internal/service/websocket.go
index 325deef..33ed345 100644
--- a/internal/service/websocket.go
+++ b/internal/service/websocket.go
@@ -78,7 +78,7 @@ func runInstallMessage(mgr *manager.WebsocketManager, installMgr *manager.Instal
 			mgr.WriteMessage(msg)
 			return
 		} else {
-			installMgr.WriteLog(app.ID)
+			installMgr.SaveLog(app.ID)
 		}
 	}
 
diff --git a/internal/task/task.go b/internal/task/task.go
index 49b542a..00b6968 100644
--- a/internal/task/task.go
+++ b/internal/task/task.go
@@ -24,6 +24,7 @@ type Task struct {
 	InstallingApps  sync.Map
 	InstallAppQueue chan model.InstalledApp
 	chExitQueue     chan bool
+	InvalidAccounts map[string]bool
 }
 
 func new() *Task {
@@ -68,6 +69,7 @@ func (t *Task) Stop() {
 }
 
 func (t *Task) Run() {
+	t.InvalidAccounts = make(map[string]bool)
 	installedApps, err := service.GetEnableAppList()
 	if err != nil {
 		log.Err(err).Msg("Failed to get the installation list")
@@ -156,22 +158,34 @@ func (t *Task) tryInstallApp(v model.InstalledApp) {
 }
 
 func (t *Task) runInternal(v model.InstalledApp) error {
+	installMgr := manager.NewInstallManager()
+	defer func() {
+		installMgr.SaveLog(v.ID)
+		installMgr.Close()
+	}()
+
 	if v.Account == "" || v.Password == "" || v.UDID == "" {
-		log.Info("account or password or UDID is empty")
+		installMgr.WriteLog("account or password or UDID is empty")
 		return fmt.Errorf("%s", "account or password or UDID is empty")
 	}
 
-	installMgr := manager.NewInstallManager()
-	defer installMgr.Close()
+	if _, ok := t.InvalidAccounts[v.Account]; ok {
+		installMgr.WriteLog(fmt.Sprintf("The install account (%s) is invalid, skip install.", v.MaskAccount()))
+		return fmt.Errorf("The install account (%s) is invalid, skip install.", v.MaskAccount())
+	}
+
 	err := installMgr.TryStart(context.Background(), v.UDID, v.Account, v.Password, v.IpaPath)
-	installMgr.WriteLog(v.ID)
 	if err != nil {
 		log.Err(err).Msgf("Error executing installation script. %s", installMgr.ErrorLog())
+		installMgr.WriteLog(err.Error())
 		return err
 	}
 	if strings.Contains(installMgr.OutputLog(), "Installation Succeeded") {
 		return nil
 	} else {
+		if strings.Contains(installMgr.OutputLog(), "ERROR") && strings.Contains(installMgr.OutputLog(), "Can't log-in") {
+			t.InvalidAccounts[v.Account] = true
+		}
 		return fmt.Errorf("%s", installMgr.ErrorLog())
 	}
 }