MySQL error in file: /engine/cache/system/plugins/de15d4807baf445708b0d499a2a39d42.php at line 393

Error Number: 1

The Error returned was:
Can't create/write to file '/tmp/MYSjEuXY' (Errcode: 28 "No space left on device")

SQL query:

SELECT category, COUNT(*) AS count FROM dle_post WHERE approve=1 AND date < '2024-05-15 20:37:47' GROUP BY category