You can translate most of the form's validation texts from the setting:
๐๏ธ Old dashboard:
To start, edit your form in the Formaloo old dashboard and click on the โDesignโ tab. Open up the โCustomize more contentโ option and change the text of the fields you want.
To change the โSubmitโ button, you should edit the โSubmit button textโ field below the form fields list.
To change the success message (the message shown after submitting the form), you should edit the โSuccess message after submitโ text area below the form fields list.