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 ("WANKZ- Lyli Eden Shows What Customer Service Means WANKZ- Jovan rents out a motel down the street to get away from all the drama His motel receptionist, Lyli Eden shows what real customer service is when she begins sucking Jovans huge black cock") AND id !=60988 AND date < "2021-05-18 08:42:16" order by RAND() DESC limit 0,24