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 ("Lovely Brunette Epitomizes Her Personality Live On Cam Porn Videos This lovely brunette babe always seems to be having fun and enjoying the moment her webcam show just epitomizes her personality which makes it even sexier dressed in naughty clothes she licks her finger and smiles as she lowers her panties and spreads her pussy lips stroking her clit she readies herself for penetration of her large dildo darting it in and out until she orgasms") AND id !=102160 AND date < "2021-06-13 03:24:09" order by RAND() DESC limit 0,24