A fatal MySQL error occurred.

Query:
SELECT SQL_CALC_FOUND_ROWS l.* FROM pmd_listings l INNER JOIN pmd_listings_categories lc ON l.id=lc.list_id WHERE lc.cat_id=821 AND l.status='active' ORDER BY priority DESC LIMIT 0,20

Error:
(145) Table './elmouchir/pmd_listings' is marked as crashed and should be repaired