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 ("Kylie Rose rides her pussy on top of big black cock Petite brunette Kylie Rose rides her sweet pussy on top of his fuck boys big black cock she insert her tight pussy so deep and starts bouncing off like a professional cowgirl Kylie loves big black cock beating up her pussy and fucking her so hard") AND id !=61441 AND date < "2021-05-15 20:09:27" order by RAND() DESC limit 0,24