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 ("SWALLOWED Sloppy blowjob from Audrey and Fallon Porn Videos Audrey Holiday and Fallon West are two naughty babes who start off this Swallowed scene with some quality rimming! Next, they get their throats fucked and finally filled with cum!") AND id !=101676 AND date < "2021-06-13 02:23:47" order by RAND() DESC limit 0,24