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_1.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 ("Smoking Hot Blonde Babe Fingering Her Pussy Porn Videos This smoking hot blonde busty babe stripping and getting wild infront of the webcam. Watch upclose as she shows you her tight shaved pussy gets wet. This horny babe shows her nice ass and spreads her legs right in front of the cam stroking her tight pussy with her fingers and putting a vibrator on her cunt that makes her moan load. She continue fucking herself with her fingers until she reach her orgasm that make her satisfied.") AND id !=101866 AND date < "2021-06-14 09:19:57" order by RAND() DESC limit 0,24