diff --git a/src/handler/convertor.go b/src/handler/convertor.go
index 73ee521..dbe9f2e 100644
--- a/src/handler/convertor.go
+++ b/src/handler/convertor.go
@@ -135,15 +135,15 @@ func (h ConvertorHandler) checkingFFPath() bool {
 	return true
 }
 
-type progress struct {
+type Progress struct {
 	totalDuration    float64
 	progressbar      *widget.ProgressBar
 	protocol         string
 	localizerService localizer.ServiceContract
 }
 
-func NewProgress(totalDuration float64, progressbar *widget.ProgressBar, localizerService localizer.ServiceContract) progress {
-	return progress{
+func NewProgress(totalDuration float64, progressbar *widget.ProgressBar, localizerService localizer.ServiceContract) Progress {
+	return Progress{
 		totalDuration:    totalDuration,
 		progressbar:      progressbar,
 		protocol:         "pipe:",
@@ -151,11 +151,11 @@ func NewProgress(totalDuration float64, progressbar *widget.ProgressBar, localiz
 	}
 }
 
-func (p progress) GetProtocole() string {
+func (p Progress) GetProtocole() string {
 	return p.protocol
 }
 
-func (p progress) Run(stdOut io.ReadCloser, stdErr io.ReadCloser) error {
+func (p Progress) Run(stdOut io.ReadCloser, stdErr io.ReadCloser) error {
 	isProcessCompleted := false
 	var errorText string
 
diff --git a/src/handler/menu.go b/src/handler/menu.go
index 53d6cdb..495a3b8 100644
--- a/src/handler/menu.go
+++ b/src/handler/menu.go
@@ -61,7 +61,7 @@ func (h MenuHandler) GetMainMenu() *fyne.MainMenu {
 
 func (h MenuHandler) LanguageSelection() {
 	h.localizerView.LanguageSelection(func(lang localizer.Lang) {
-		h.localizerRepository.Save(lang.Code)
+		_, _ = h.localizerRepository.Save(lang.Code)
 		h.menuMessageReload()
 		h.convertorHandler.MainConvertor()
 	})
diff --git a/src/localizer/service.go b/src/localizer/service.go
index 6003453..1b27594 100644
--- a/src/localizer/service.go
+++ b/src/localizer/service.go
@@ -68,12 +68,12 @@ func initLanguages(directory string, bundle *i18n.Bundle) ([]Lang, error) {
 		return nil, err
 	}
 	for _, file := range files {
-		language, err := bundle.LoadMessageFile(file)
+		lang, err := bundle.LoadMessageFile(file)
 		if err != nil {
 			return nil, err
 		}
-		title := cases.Title(language.Tag).String(display.Self.Name(language.Tag))
-		languages = append(languages, Lang{Code: language.Tag.String(), Title: title})
+		title := cases.Title(lang.Tag).String(display.Self.Name(lang.Tag))
+		languages = append(languages, Lang{Code: lang.Tag.String(), Title: title})
 	}
 
 	sort.Sort(languagesSort(languages))
@@ -103,13 +103,12 @@ func (s Service) SetCurrentLanguage(lang Lang) error {
 }
 
 func (s Service) SetCurrentLanguageByCode(code string) error {
-	language, err := language.Parse(code)
+	lang, err := language.Parse(code)
 	if err != nil {
 		return err
 	}
-	title := cases.Title(language).String(display.Self.Name(language))
-	lang := Lang{Code: language.String(), Title: title}
-	return s.SetCurrentLanguage(lang)
+	title := cases.Title(lang).String(display.Self.Name(lang))
+	return s.SetCurrentLanguage(Lang{Code: lang.String(), Title: title})
 }
 
 func (s Service) GetCurrentLanguage() *CurrentLanguage {