MySQL error in file: /engine/modules/show.short.php at line 78

Error Number: 1053

The Error returned was:
Server shutdown in progress

SQL query:

SELECT id, autor, date, short_story, SUBSTRING(full_story, 1, 15) as full_story, xfields, title, category, alt_name, comm_num, allow_comm, allow_rate, fixed, rating, vote_num, news_read, flag, editdate, editor, reason, view_edit, tags FROM dle_post WHERE category regexp '[[:<:]](22)[[:>:]]' AND approve AND date < '2021-12-09 21:59:59' ORDER BY date DESC LIMIT 110,10