UPDATE `langs` SET `{unknown}` = 'E-mail not exist' WHERE `lang_key` = 'email_not_exist';
UPDATE `langs` SET `{unknown}` = 'Published in' WHERE `lang_key` = 'published_in';
UPDATE `langs` SET `{unknown}` = 'We have renew your membership' WHERE `lang_key` = 'pro_renew';
UPDATE `langs` SET `{unknown}` = 'Your membership is ended' WHERE `lang_key` = 'pro_ended';
