Error 500 / Index column size too large. The maximum column size is 767 bytes

Hi,

Last update crash my website :

[16-Jun-2022 22:00:21 UTC] Erreur de la base de données WordPress?: Index column size too large. The maximum column size is 767 bytes. pour la requête CREATE TABLE IF NOT EXISTS wpdcm_mapp_maps (
			mapid INT NOT NULL AUTO_INCREMENT,
			otype VARCHAR(32),
			oid INT,
			status VARCHAR(64),
			title VARCHAR(512),
			obj LONGTEXT,
			INDEX title_idx (title),
			PRIMARY KEY  (mapid),
			UNIQUE KEY object_idx (otype, oid, mapid)
			) CHARACTER SET utf8; faite par require('/home/clients/8905ceed51c79fb5c6e7239454653264/formagora_prod/wp-config.php'), require_once('wp-settings.php'), do_action('init'), WP_Hook->do_action, WP_Hook->apply_filters, Mappress::init, Mappress_Db::register, Mappress_Db::create_db

I think there is something todo with INDEX title_idx when ‘DB_CHARSET’ is ‘utf8mb4’ …