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 ("Russian Babe Fucked Her Cameltoe Till It Become Wet Porn Videos One of the prettiest babe on cam right now giving her fans a awesome show. She reveal her nice natural boobies to her viewers. She get a toy dildo then lick and suck it like a real cock while she moans. Then she position the dildo on the bed and begins to ride it like a jockey. After that she lay down on the bed and spreads her legs fucking then begins to fuck her pussy hard till it gets wet.") AND id !=102451 AND date < "2021-06-21 20:19:48" order by RAND() DESC limit 0,24