MySQL error in file: /engine/modules/blockpro/block.pro.3.php at line 552

Error Number: 1

The Error returned was:
Can't create/write to file '/var/tmp/#sql_3929_0.MAI' (Errcode: 28)

SQL query:

SELECT p.id, p.autor, p.date, p.short_story, p.full_story, p.xfields, p.title, p.category, p.alt_name, p.allow_comm, p.comm_num, p.fixed, p.tags, e.news_read, e.allow_rate, e.rating, e.vote_num, e.votes from dle_post p LEFT JOIN dle_post_extras e ON (p.id=e.news_id) where approve AND NOT category regexp "[[:<:]](40|41)[[:>:]]" AND MATCH (title, short_story, full_story, xfields) AGAINST ("JMac fucking Hailey Littles pussy doggystyle The infamous JMac shows the American brunette Hailey wild new ways to fuck that stretch her tight teen pussy and leave her begging for she bends over her fine ass and JMac rides her from behind and drills her tight pussy with his large cock") AND id !=61588 AND date < "2021-05-15 11:42:16" order by RAND() DESC limit 0,24