MySQL error in file: /engine/cache/system/plugins/cd1c06cf7d0247df45e1bffa6d31d28d.php at line 447

Error Number: 3

The Error returned was:
Error writing file '/tmp/MYBeyop4' (Errcode: 28 "No space left on device")

SQL query:

SELECT category, COUNT(*) AS count FROM dle_post WHERE approve=1 GROUP BY category