MySQL error in file: /engine/modules/show.full.php at line 1162

Error Number: 1

The Error returned was:
Can't create/write to file '/tmp/#sql_6f84_0.MAI' (Errcode: 28 "No space left on device")

SQL query:

SELECT id, date, short_story, xfields, title, category, alt_name, MATCH (title, short_story, full_story, xfields) AGAINST ('Понятие и виды обязательств Введение .................................................................................................................................') as score FROM dle_post23 WHERE category = '23' AND MATCH (title, short_story, full_story, xfields) AGAINST ('Понятие и виды обязательств Введение .................................................................................................................................') AND id != 63216 AND approve=1 ORDER BY score DESC LIMIT 10