MySQL error in file: /engine/modules/system.php at line 56

Error Number: 1

The Error returned was:
Can't create/write to file '/tmp/MY0R31wQ' (OS errno 28 - No space left on device)

SQL query:

SELECT SQL_CALC_FOUND_ROWS dle_post.*, dle_category.id AS main__cat, dle_category.parentid, dle_category.posi FROM dle_post LEFT JOIN dle_category ON dle_post.category = dle_category.id WHERE approve='1' AND allow_main='1' AND dle_category.parentid IN (40,41) AND dle_post.system IN ('ios-12', 'ios-11', 'ios-10', 'ios-9.3', 'ios-9.2', 'ios-9.1', 'ios-9', 'ios-8.2', 'ios-8.1', 'ios-8', 'ios-7.1', 'ios-7', 'ios-6', 'ios-5', 'ios-4', 'ios-3') ORDER BY FIELD (dle_post.system,'ios-12', 'ios-11', 'ios-10', 'ios-9.3', 'ios-9.2', 'ios-9.1', 'ios-9', 'ios-8.2', 'ios-8.1', 'ios-8', 'ios-7.1', 'ios-7', 'ios-6', 'ios-5', 'ios-4', 'ios-3') ASC, date DESC LIMIT 630,18