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 ("Busty Brunette Presents Her Big Breasts On Webcam Porn Videos This busty brunette babe strips off her clothes on her sexy cam show to present her busty body the lean beauty whips her long hair around as she exposes her lovely naked flesh to the webcam her pretty from smile to her big breasts and tight ass she is a work of art even better still is her perfect smooth pussy which she presents to you spread while she stroking it with her favorite dildo") AND id !=102449 AND date < "2021-06-21 04:17:45" order by RAND() DESC limit 0,24