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_1.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 ("Latina Babe A Very Hot Masturbation With A Dildo Porn Videos This Latina babe is heating up the webcam show of hers doing sexy and naughty things, she is aching to be pleasured online by her viewers she is using sex toys as her prop of choice she undresses and reveals her perky boobs along with her landing strip she parts her legs and slips a ribbed glass dildo inside herself masturbating until she reaches orgasm") AND id !=101881 AND date < "2021-06-24 22:07:43" order by RAND() DESC limit 0,24