MySQL Error: Illegal mix of collations (latin1_swedish_ci,IMPLICIT) and (utf8mb4_general_ci,COERCIBLE) for operation '='

select null from static_pages as i join static_pages_view as t on t.id = i.id where lower(replace(i.title, ' ', '-')) = 'download​' and i.site = 'trenchrun' and t.lang = 'en' limit 1