Error : “Language is already enabled or invalid! ” in wordpress plugin qTranslate [closed] July 10, 2022 by Tarik Billa I’ve found a solution and described it here: http://shtrak.eu/vloo/tech/language-is-already-enabled-or-invalid-when-enablin-new-language-to-qtranslate/ Watch out for older database converters that might wipe out your content!