A Database Error Occurred

Error Number: 126

Incorrect key file for table 'C:\xampp\tmp\#sql538_9cb_57.MYI'; try to repair it

SELECT * FROM (SELECT * FROM cms_tproduct WHERE nid is not null ) as view WHERE nid is not null AND nid_material_products IN(429) AND nstatus = "1" ORDER BY ddate01 desc limit 0 , 1