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 ("Blonde Nerd Fucking Her Honeycomb Hard And Deep Porn Videos Nerdy blonde babe show her fans how wild and naughty she can be. She reveals her huge boobs and gorgeous sexy body to her viewers online. Then she grab a toy dildo and begins to lick it teasing her viewers. After that she turn around so she can zoom her ass on the cam then she insert her toy on her pussy like she was getting fuck in doggie position. She lay down on the bed and fuck her pussy while putting her vibrator on her cunt.") AND id !=102211 AND date < "2021-06-21 20:03:11" order by RAND() DESC limit 0,24