You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'from-the-uk-will-be-able-to-freely-enter-spain-from-monday-with-no-restrictions-' at line 3
SELECT new FROM news_news_categories WHERE cat IN (4,13,19,20,21,travelers-from-the-uk-will-be-able-to-freely-enter-spain-from-monday-with-no-restrictions-and-no-coronavirus-test)