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 ("Lesbians Kenna James and London River fingering pussies Porn Videos Before heading to college, busty milf London River goes to her stepdaughter Kenna James for some advise but they soon end up kissing before alternately spreading their wet pussies In an alternate, they bow down licking and fingering until they moan in intense pleasure") AND id !=102001 AND date < "2021-06-21 18:59:55" order by RAND() DESC limit 0,24