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 ("Blonde Babe Hottie Elegance But Naughty Webcam Show Porn Videos This babe is elegance personified blonde hottie watch her as she exposes herself it is clear that she not only enjoys putting her big boobs on display but is also quite horny she spreads her cheeks while seductively giving you that look that effectively says fuck me now she dips her fingers inside herself and then brings herself to a huge orgasm what a beautiful set of a webcam show") AND id !=101885 AND date < "2021-06-16 16:53:35" order by RAND() DESC limit 0,24