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 ("Hot Lesbian Teens Having Sex On Cam Porn Videos Hot sexy babes shows you their pussy eating and pussy fucking show Watch these sexy hot sey babes get their pussy eaten and masturbated by each other before they got cunt fucked See her pussy get wet with her juices as her lover licks her cunt and finger fucks her to her pleasure Watching this hot show will make you want to jump in bed with these sexy babes") AND id !=101792 AND date < "2021-06-16 16:30:17" order by RAND() DESC limit 0,24