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 ("WANKZ- Pamela Price Has Taboo Sex WANKZ- Cody Sky has wanted to bang the fuck out of smoking hot stepmom for awhile Then, this beautiful Milf assumes the doggy style position and moans to the high heavens as Cody smashes that pussy relentlessly") AND id !=60314 AND date < "2021-05-12 23:32:33" order by RAND() DESC limit 0,24