Update to 2.9.2 doesn't work

hi all,

I have update my server from Ocsinventory 2.9 to 2.9.2 but after the logon I receive a blank page.

System is Centos 7.9.2009, apache 2.4.6, php 7.4.27.

In the log I see this error:

 PHP Fatal error:  Uncaught TypeError: Argument 1 passed to XMLUrlsSerializer::serialize() must be an instance of Urls, bool given, called in /usr/share/ocsinventory-reports/ocsreports/require/config/include.php on line 57 and defined in /usr/share/ocsinventory-reports/ocsreports/require/config/XMLUrlsSerializer.php:29\nStack trace:\n#0 /usr/share/ocsinventory-reports/ocsreports/require/config/include.php(57): XMLUrlsSerializer->serialize(false)\n#1 /usr/share/ocsinventory-reports/ocsreports/require/config/include.php(46): migrate_urls_2_2(false)\n#2 /usr/share/ocsinventory-reports/ocsreports/backend/identity/methode/ldap.php(154): migrate_config_2_2()\n#3 /usr/share/ocsinventory-reports/ocsreports/backend/identity/identity.php(33): require_once('/usr/share/ocsi...')\n#4 /usr/share/ocsinventory-reports/ocsreports/require/header.php(327): require_once('/usr/share/ocsi...')\n#5 /usr/share/ocsinventory-reports/ocsreports/index.php(44): require('/usr/share/ocsi...')\n#6 {main}\n  thrown in /usr/share/ocsinventory-reports/ocsreports/require/config/XMLUrlsSerializer.php on line 29

May you help me.

Thanks

 Roberto