Cannot query the database.

select news.*, from_unixtime(PublishDateTime, '%m/%d/%Y') as Date from news where Status = 'enabled' and PublishDateTime <= unix_timestamp() and urlname = 'csa-group-electrical-quick-reference-–-guidance-at-your-fingertips'

Error:
Illegal mix of collations (utf8mb4_unicode_ci,IMPLICIT) and (utf8_general_ci,COERCIBLE) for operation '='
Trace: (database.class.php:78)
(data.class.php:89)
(main.class.php:368)
(main.class.php:601)
(manager.class.php:23)
(document.class.php:153)
(document.class.php:87)
(index.php:13)