Please make sure you’re using Edali V3.8+ when start using the BuddyPress plugin.
Go to Plugins>Add New and type BuddyPress into the search field, install and activate the plugin.
After that, you will see there are three pages available into Settings>BudduPress>Pages here you can update your page settings.
For Components control please go to Settings>BudduPress>Components
Please enable registration by clicking on the “Anyone can register” checkbox from Settings->General.