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 ("Sweet Lesbian Babes Shared One Big Toy Porn Videos Watch this sweet lesbians babes while they shared they favorite toy on a webcam show. These oozing hot sexy ladies cannot wait to get their hands and tongues on each other. Watch one lesbian chick lay on the bed while her best friend begins to suck her juicy puss.") AND id !=102204 AND date < "2021-06-23 07:37:56" order by RAND() DESC limit 0,24