centos only full group by

Warning: preg_match_all(): Compilation failed: POSIX collating elements are not supported at offset 53 in /home/yavuzsel/public_html/wp-content/plugins/seo-by-rank-math/includes/replace-variables/class-post-variables.php on line 545

Warning: preg_match_all(): Compilation failed: POSIX collating elements are not supported at offset 53 in /home/yavuzsel/public_html/wp-content/plugins/seo-by-rank-math/includes/replace-variables/class-post-variables.php on line 545
centos only full group by - Yavuz Selim