I checked your site and found out, that you can just remove it in the layouts ( WordPress Admin => ClassiPress => Form Layouts ) then click on edit and remove the email field.
I checked your site and found out, that you can just remove it in the layouts ( WordPress Admin => ClassiPress => Form Layouts ) then click on edit and remove the email field.
I believe that you need to update the file classipress-de_DE.po. To do this, use the file classipress.pot the beta version. The file is inside the theme folder. See how to upgrade the language pack: ...