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 ("Busty Midget Gamer Fucking Gym Ball With Dildo Porn Videos Busty midget that is so popular and one of the most wanted small woman on Internet is happy to do a show with a gym ball and bounce of it so crazy and horny! She got a perfect natural big tits and she is an desirable horny busty blond, so crazy so exciting to watch her on live cams! Yeah hardcore ride on a ball from a gym, real game begins when she rides it like cowgirl!") AND id !=102668 AND date < "2021-06-21 04:03:00" order by RAND() DESC limit 0,24