MySQL error in file: /engine/init.php at line 333

Error Number: 23

The Error returned was:
Out of resources when opening file './777s/dle_post.MYD' (Errcode: 24 - Too many open files)

SQL query:

SELECT category FROM dle_post where month(date) = '04' AND year(date) = '2025' AND dayofmonth(date) = '16' AND alt_name ='293-proverka-na-demenciyu-smozhete-nayti-cifru-za-10-sekund-bolshinstvo-spravitsya-a-vy-grss-398340079'