Špatný dotaz SQL!
SELECT tbl_form.*, tbl_form_lang.*, tbl_form_lang.name AS article_title FROM tbl_form, tbl_form_lang, tbl_lang WHERE tbl_form.id = AND tbl_form_lang.id_form = tbl_form.id AND tbl_form_lang.id_lang = tbl_lang.id AND tbl_lang.code = "cz" LIMIT 1