MySQL error in file: /engine/modules/iComm/show.php at line 39

Error Number: 3

The Error returned was:
Error writing file '/tmp/MYfd=440' (OS errno 28 - No space left on device)

SQL query:

SELECT c.post_id, c.is_register, c.text, c.autor, c.email, p.id, p.date as newsdate, p.title, p.category, p.comm_num, p.alt_name FROM dle_comments as c, dle_post as p WHERE p.id=c.post_id AND c.approve = 1 AND p.category NOT IN ( 55,56,57,58,59,60,61,62,63,64 ) ORDER BY c.date DESC LIMIT 0, 4