An Error Was Encountered

Error Number: 1016

Can't open file: 'nrbt_docs.MYI' (errno: 144)

SELECT pub.*, doc.* FROM nrbt_pubs pub, nrbt_docs doc WHERE pub.docsId=doc.id AND pub.pagesId=16 AND doc.catId IN (1,2,3) AND doc.active=1 ORDER BY doc.createDate DESC