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 ("Lovely Brunette Shows Off Her Awesome Body Porn Videos This lovely brunette babe shows off her awesome body in feminine bra and panties and she will make you fall in love from her face to her figure she is breathtaking torso is tight and toned while her breasts are firm and soft and that booty of hers has a nice bit of plumpness she strips naked in a dimly lit room and kicks her long legs up into the air while displaying her lovely nakedness") AND id !=102075 AND date < "2021-06-21 18:41:16" order by RAND() DESC limit 0,24