MySQL error in file: /engine/init.php at line 304

Error Number: 1021

The Error returned was:
Disk full (/tmp/#sql-temptable-24e09-2e0f925-0.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")

SQL query:

SELECT category, COUNT(*) AS count FROM dle_post WHERE approve=1 AND date < '2025-05-04 16:44:00' GROUP BY category