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 ("Latina Elena Heiress Grinds Hard We have the naughty Elena Heiress on this clip as she gets it on with her man! Watch as Elena gets fucked hard by her horny stud as he jams his hard cock and Elena grinds on top of it afterwards") AND id !=61400 AND date < "2021-05-15 21:04:21" order by RAND() DESC limit 0,24