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.MAD' (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 ("Biggest Ass and Huge Tits Blonde Fuck Part II Creampie Porn Videos Biggest ass porn star with huge tits also is riding lucky guys dick and letting him to cum in her pussy and he does! She is so big but lean blonde with tattoos all over her hot body, in this part he is licking sucking and eating her pussy, fucking her on the bed while her huge tits are bouncing to the point where they both moan and he creampie her sweet pussy and leaking in closeup!") AND id !=102672 AND date < "2021-06-16 17:26:11" order by RAND() DESC limit 0,24