==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release): 1.4.1
- Deployed with iRedMail Easy or the downloadable installer? yes
- Linux/BSD distribution name and version: rokylinux
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): LDAP
- Web server (Apache or Nginx):NGINX
- Manage mail accounts with iRedAdmin-Pro?
- [IMPORTANT] Related original log or error message is required if you're experiencing an issue.
====
I have a problem in rouncubemail that I don't know what it is, that in the result of the log / var / log / maillog I get this output that I don't know what it is and I don't get clean the log outputs. However everything works apparently fine.

What problem could it be that I get this output in / var/ log / maillog:

.......
Sep 16 17:40:56 smtp roundcube[775]: <86tmmtae> DB Error: [1064] You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '` <> 1 AND c.`user_id` = '1' AND ((`name` LIKE '%y%') OR (`firstname` LIKE '%...' at line 1 (SQL Query: SELECT * FROM ` AS c WHERE c.`del` <> 1 AND c.`user_id` = '1' AND ((`name` LIKE '%y%') OR (`firstname` LIKE '%y%') OR (`surname` LIKE '%y%') OR (`email` LIKE '%y%')) AND `email` <> '' ORDER BY CONCAT(c.`surname`, c.`firstname`, c.`name`, c.`email`) ASC LIMIT 15) in /opt/www/roundcubemail-1.4.11/program/lib/Roundcube/rcube_db.php on line 543 (POST /mail/?_task=mail&_action=autocomplete)
Sep 16 17:40:56 smtp roundcube[29893]: <86tmmtae> DB Error: [1064] You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '` <> 1 AND c.`user_id` = '1' AND ((`name` LIKE '%ybrito%') OR (`firstname` LI...' at line 1 (SQL Query: SELECT * FROM ` AS c WHERE c.`del` <> 1 AND c.`user_id` = '1' AND ((`name` LIKE '%ybrito%') OR (`firstname` LIKE '%ybrito%') OR (`surname` LIKE '%ybrito%') OR (`email` LIKE '%ybrito%')) AND `email` <> '' ORDER BY CONCAT(c.`surname`, c.`firstname`, c.`name`, c.`email`) ASC LIMIT 15) in /opt/www/roundcubemail-1.4.11/program/lib/Roundcube/rcube_db.php on line 543 (POST /mail/?_task=mail&_action=autocomplete)
You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '` <> 1 AND c.`user_id` = '1' AND ((`name` LIKE '%ybrito%') OR (`firstname` LI...' at line 1 (SQL Query: SELECT * FROM ` AS c WHERE c.`del` <> 1 AND c.`user_id` = '1' AND ((`name` LIKE '%ybrito%') OR (`firstname` LIKE '%ybrito%') OR (`surname` LIKE '%ybrito%') OR (`email` LIKE '%ybrito%')) AND `email` <> '' ORDER BY CONCAT(c.`surname`, c.`firstname`, c.`name`, c.`email`) ASC LIMIT 15) in /opt/www/roundcubemail-1.4.11/program/lib/Roundcube/rcube_db.php on line 543 (POST /mail/?_task=mail&_action=autocomplete) You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '` <> 1 AND c.`user_id` = '1' AND ((`name` LIKE '%ybrito%') OR (`firstname` LI...' at line 1 (SQL Query: SELECT * FROM ` AS c WHERE c.`del` <> 1 AND c.`user_id` = '1' AND ((`name` LIKE '%ybrito%') OR (`firstname` LIKE '%ybrito%') OR (`surname` LIKE '%ybrito%') OR (`email` LIKE '%ybrito%')) AND `email` <> '' ORDER BY CONCAT(c.`surname`, c.`firstname`, c.`name`, c.`email`) ASC LIMIT 15) in /opt/www/roundcubemail-1.4.11/program/lib/Roundcube/rcube_db.php on line 543 (POST /mail/?_task=mail&_action=autocomplete) You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '` <> 1 AND c.`user_id` = '1' AND ((`name` LIKE '%ybrito%') OR (`firstname` LI...' at line 1 (SQL Query: SELECT * FROM ` AS c WHERE c.`del` <> 1 AND c.`user_id` = '1' AND ((`name` LIKE '%ybrito%') OR (`firstname` LIKE '%ybrito%') OR (`surname` LIKE '%ybrito%') OR (`email` LIKE '%ybrito%')) AND `email` <> '' ORDER BY CONCAT(c.`surname`, c.`firstname`, c.`name`, c.`email`) ASC LIMIT