SPEEDMATE SM-STJ135

Error: Table './10w40/product_discount' is marked as crashed and last (automatic?) repair failed
Error No: 144
SELECT * FROM 10w40.product_discount WHERE product_id = '6676775' AND customer_group_id = '1' #AND quantity > 1 AND ((date_start = '0000-00-00' OR date_start < NOW()) AND (date_end = '0000-00-00' OR date_end > NOW())) ORDER BY quantity ASC, priority ASC, price ASC