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 ("Horny Pretty Babe with Nice Tits Fucked Hard Porn Videos This horny couple will make your webcam experience steaming hot. Hot girlfriend babe makes her boyfriend cock rock hard before getting fucked in return from behind awesome doggy fucking. Watch this hot couple live on cam please their viewer by fucking this hot babe from behind. She loves to gets fucked by her boyfriend huge cock doggy style Watch this hot babe getting fuck by her boyfriend from behind") AND id !=101845 AND date < "2021-06-16 15:50:02" order by RAND() DESC limit 0,24