2
So to get it from global configuration set in configuration.php from anywhere within Joomla component, plugins, modules and templates you would use:
$config = JFactory::getConfig();
$siteName = $config->get('sitename', 'No Site Name Specified');
OR
$siteName = JFactory::getConfig()->get('sitename', 'No Site Name Specified');
You can also use name ...
1
I'm not sure if it will solve the problem but it seems like you downloaded an outdated version of VirtueMart. Please, try downloading this one directly from Joomla Extensions: https://extensions.joomla.org/https://extensions.joomla.org/extension/virtuemart/
Last update was June 18, 2020. Version: 3.8.4
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