MySQL error in file: /engine/api/api.class.php at line 362

Error Number: 3685

The Error returned was:
Illegal argument to a regular expression.

SQL query:

Select * from dle_post where (category regexp "[[:<:]](22)[[:>:]]") AND approve = 1 AND date < "2024-04-26 21:01:11" AND id != 1025 AND id < 1025 order by id DESC limit 0,20