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 ("Joe and Kristen sign off the contract upon their arrival at the swing house Porn Videos Joe and Kristen go over the contract as they sign and head out to meet with other horny couples in the red room for a full swap during swingers party Visit PlayboyShows for much more") AND id !=101962 AND date < "2021-06-16 16:26:37" order by RAND() DESC limit 0,24