Henk Jan on "[Plugin: Custom Field Suite] WP database error when updating a page"

When I update a page - without custom fields, I get the following error and warnings - when WP_DEBUG is on.

WordPress database error: [You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ') OR v.base_field_id IN ())' at line 4]
 DELETE v, m FROM wp_cfs_values v LEFT JOIN wp_postmeta m ON m.meta_id = v.meta_id WHERE v.post_id = '1506' AND (v.field_id IN () OR v.base_field_id IN ())

Warning: Cannot modify header information - headers already sent by (output started at /my/path/wp-includes/wp-db.php:1220) in /my/path/wp-admin/post.php on line 235

Warning: Cannot modify header information - headers already sent by (output started at /my/path/wp-includes/wp-db.php:1220) in /my/path/wp-includes/pluggable.php on line 1121

Thanks and regards, Henk Jan.

https://wordpress.org/plugins/custom-field-suite/