SQL error with iqblockcountry_clean_db()

Hello,

I have the same kind of error that was mentioned in this topic (marked as resolved, that’s why I am opening a new one) :

https://www.ads-software.com/support/topic/sql-error-38/

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 ‘) >= datetime’ at line 1 pour la requête DELETE FROM wp_xxxxxxiqblock_logging WHERE DATE_SUB(CURDATE(),INTERVAL DAY) >= datetime; faite par require_once(‘wp-load.php’), require_once(‘wp-config.php’), require_once(‘wp-settings.php’), include_once(‘/plugins/iq-block-country/iq-block-country.php’), iqblockcountry_clean_db

I am with this configuration :
MySQL Database Version: 5.5.59-0+deb7u1-log
MySQL Client Version: 5.5.59
Database Host: xxxxxxxxx.db.1and1.com
SQL Mode: Not Set

PHP Version: 7.2.3

WP version : 4.9.4

Thanks for your feed-back.
Regards.

Francois