In Joomla SAML plugin, when an extension is not enabled after installing the plugin, after clicking on ‘Test Configuration’ it takes you to your own site instead of redirecting you to IDP. To resolve it, you need to enable all the extensions of the plugin after installing it.
Please follow the below steps to resolve this issue:
1. In the Joomla admin interface, go to Extensions -> Manage -> Manage.
2. Search for ‘miniorange’.
3. Enable all the extensions of the plugins.