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 ("Beautiful teens goes on cock riding on top of the lucky stud Porn Videos Selena Sosa Jessie Lynne and Olivia Lua invited him back to their hotel room for a foursome How lucky he was He got to know these girls in ways their parents could never even imagine and wore each of their pussys out just as much as the baldest tire") AND id !=101664 AND date < "2021-06-14 08:07:20" order by RAND() DESC limit 0,24