plugin database mysql: Cannot connect, Access denied

[JerzyStuhr]

using plug-in to check the local database mysql error arises:

Cannot connect: Access denied for user 'centreon-engine'@'localhost' (using password: YES)

with other plug-ins are no problems.

attempt to connect to this user:

mysql -u centreon-engine -p
Enter password:
ERROR 1045 (28000): Access denied for user 'centreon-engine'@'localhost' (using password: YES)

such a user does not even exist:

MariaDB [mysql]> select user,host from user;
+----------+------------------+
| user     | host             |
+----------+------------------+
| root     | 127.0.0.1        |
| root     | ::1              |
|          | localhost        |
| centreon | localhost        |
| root     | localhost        |
|          | rnd-oms-centreon |
| root     | rnd-oms-centreon |
+----------+------------------+

[JerzyStuhr]

example of command for checking:

$USER1$/centreon-plugins/centreon_plugins.pl --plugin database::mysql::plugin --mode connection-time --sqlmode dbi --host localhost --user root --password PASSWORD

and this embodiment of the command line:
./centreon_plugins.pl --plugin database::mysql:lugin --mode connection-time --sqlmode dbi --host localhost --user root --password PASSWORD
OK: Connection established in 0.034s. | 'connection_time'=34ms;;;0;

[JerzyStuhr]

Help is required, it has earned itself

User centreon-engine with a blank password:

mysql -u centreon-engine -p
Enter password: 
Welcome to the MariaDB monitor.  Commands end with ; or \g.

[plataformas_centreon]

People, I´m trying to execute in centreon the script "reporting_rrd.pl" --> https://github.com/sgaudart/reporting_rrd
But when I am execute the script:
[[email protected] plugins]# perl reporting_rrd.pl --hostfile enodeb.txt --service S1aplnkTOP
Use of uninitialized value $password in concatenation (.) or string at reporting_rrd.pl line 203.
Enter password:
ERROR 1045 (28000): Access denied for user 'centreon'@'localhost' (using password: NO)
enodeb.txt service:S1aplnkTOP From:01-06-2017 to 01-07-2017
+----------+---------+--------+-------+
Use of uninitialized value $unit in concatenation (.) or string at reporting_rrd.pl line 304.
| hostname | service | metric | value ()|
+----------+---------+--------+-------+
+----------+---------+--------+-------+
[[email protected] plugins]#

Help me please!
thanks!