Login to the Joomla dashboard.
To make changes to your website the first thing you will have to do is to login to your control panel.
To do this you will have to open your web browser and navigate to your website's URL and adding the /administrator at it's end, eg. https://www.example.com/administrator.
Then you will see the Joomla login screen. There will have to enter the username and the password you specified when you run the installation process.
If you have forgotten your password, you can follow the guide on how to reset your password in Joomla in our Knowledge Base.