Plugin failed to access the database

Begin at plugins/ocsinventoryng/inc/dbocs.class.php:97 and follow connect() from line 55, using the php-errors.log warning and the stated GLPI/OCSNG VM setup as context. Reproduce the failed connection and trace the configuration, network, and database-access behavior; done means the OCSNG plugin connects without the mysqli permission-denied warning.

• PLUGIN VERSION = 2.0.4
• GLPI 10.0.6

I've been trying to connect to my ocsng database via the OCSNG plugin and the plugin returns to me that it failed to connect to the database.

My current setup is two Virtual Machines running AlmaLinux 9.1 server (no gui). One running GLPI and another running OCSNG, both are on the same network

I went into the php-errors.log of GLPI and it returns this detailed Warning:

[2023-03-23 08:08:59] glpiphplog.WARNING: *** PHP Warning (2): mysqli::real_connect(): (HY000/2002): Permission denied in /var/www/html/glpi/plugins/ocsinventoryng/inc/dbocs.class.php at line 97
Backtrace :
plugins/ocsinventoryng/inc/dbocs.class.php:97 mysqli->real_connect()
plugins/ocsinventoryng/inc/dbocs.class.php:55 PluginOcsinventoryngDBocs->connect()
...ins/ocsinventoryng/inc/ocsdbclient.class.php:54 PluginOcsinventoryngDBocs->__construct()
...ins/ocsinventoryng/inc/ocsserver.class.php:1926 PluginOcsinventoryngOcsDbClient->__construct()
...ins/ocsinventoryng/inc/ocsserver.class.php:1905 PluginOcsinventoryngOcsServer::getDBocs()
...ins/ocsinventoryng/inc/snmpocslink.class.php:65 PluginOcsinventoryngOcsServer::checkOCSconnection()
src/CommonGLPI.php:382 PluginOcsinventoryngSnmpOcslink->getTabNameForItem()
plugins/ocsinventoryng/inc/ocsserver.class.php:146 CommonGLPI->addStandardTab()
src/CommonGLPI.php:332 PluginOcsinventoryngOcsServer->defineTabs()
src/Toolbox.php:3559 CommonGLPI->defineAllTabs()
ajax/updatecurrenttab.php:46 Toolbox::getAvailablesTabs()