diff --git a/cmd/frpmgr/main.go b/cmd/frpmgr/main.go
index f2732044..2235a85a 100644
--- a/cmd/frpmgr/main.go
+++ b/cmd/frpmgr/main.go
@@ -23,7 +23,7 @@ func fatal(v ...interface{}) {
 }
 
 func info(title string, format string, v ...interface{}) {
-	windows.MessageBox(0, windows.StringToUTF16Ptr(fmt.Sprintf(format, v...)), windows.StringToUTF16Ptr(title), windows.MB_ICONINFORMATION)
+	windows.MessageBox(0, windows.StringToUTF16Ptr(i18n.Sprintf(format, v...)), windows.StringToUTF16Ptr(title), windows.MB_ICONINFORMATION)
 }
 
 var (
diff --git a/ui/proxyview.go b/ui/proxyview.go
index 52e2b7b5..fc6f1385 100644
--- a/ui/proxyview.go
+++ b/ui/proxyview.go
@@ -420,7 +420,8 @@ func (pv *ProxyView) onClipboardImport() {
 	} else if strings.HasPrefix(text, "[") {
 		proxy, err = config.UnmarshalProxyFromIni([]byte(text))
 	} else {
-		err = fmt.Errorf(i18n.Sprintf("This feature only supports text in INI or TOML format."))
+		showErrorMessage(pv.Form(), "", i18n.Sprintf("This feature only supports text in INI or TOML format."))
+		return
 	}
 	if err != nil {
 		showError(err, pv.Form())