Upgrade database from 3.1.1.4 to stable-3.1.2

Hi,
I have problems with upgrade version.
I have installed ojs3 with version: 3.1.1.4 and I would like to upgrade to 3.1.2
I am using php7.2 on centos 7

On my log I can see this error:

WARNING: The NavigationMenu (ContextId: 0, Title: User Navigation Menu, Area: user) will be skipped because the specified area has already a NavigationMenu attached.
[code: Installer Installer::migrateStaticPagesToNavigationMenuItems]
WARNING: The StaticPage "My info" uses a path (info) that conflicts with an existing Custom Navigation Menu Item path. Skipping this StaticPage.
WARNING: The StaticPage "Bla bla" uses a path (info2) that conflicts with an existing Custom Navigation Menu Item path. Skipping this StaticPage.
[code: Installer Installer::migrateSRLocale]
[code: Installer Installer::migrateUserAndAuthorNames]
<h1>DB Error: Duplicate entry '8751-bb_ES-preferredPublicName-0-0' for key 'user_settings_pkey'</h1><h4>Stack Trace:</h4>
<strong>File:</strong> ojs3_1_2/classes/install/Upgrade.inc.php line 2807<br />
<strong>Function:</strong> DAO->update("INSERT INTO user_settings (user_id, locale, setting_name, settin...", Array(3))<br />
<br/>
<strong>File:</strong> ojs3_1_2/lib/pkp/classes/install/Installer.inc.php line 421<br />
<strong>Function:</strong> Upgrade->migrateUserAndAuthorNames(Object(Upgrade), Array(2))<br />
<br/>
<strong>File:</strong> ojs3_1_2/lib/pkp/classes/install/Installer.inc.php line 265<br />
<strong>Function:</strong> Installer->executeAction(Array(3))<br />
<br/>
<strong>File:</strong> ojs3_1_2/lib/pkp/classes/install/Installer.inc.php line 186<br />
<strong>Function:</strong> Installer->executeInstaller()<br />
<br/>
<strong>File:</strong> ojs3_1_2/lib/pkp/classes/cliTool/UpgradeTool.inc.php line 88<br />
<strong>Function:</strong> Installer->execute()<br />
<br/>
<strong>File:</strong> ojs3_1_2/lib/pkp/classes/cliTool/UpgradeTool.inc.php line 64<br />
<strong>Function:</strong> UpgradeTool->upgrade()<br />
<br/>
<strong>File:</strong> ojs3_1_2/tools/upgrade.php line 34<br />
<strong>Function:</strong> UpgradeTool->execute()<br />
<br/>
ojs2: DB Error: Duplicate entry '8751-bb_ES-preferredPublicName-0-0' for key 'user_settings_pkey'

I found this user on my database:

8751	bb_ES	preferredPublicName	D. XXXX YYYY	string	0	0

But I don’t know why happend this.
Any help ??

Regards,
xavi.