The process of creating tokens/NFTs is done by accessing the URL https://kapps.klever.finance/wallet to which we can access two different methods :
Using a PEM file. A PEM file is a plain text file where the wallet's private key is stored, making it a file that we must keep in a safe place. This file can be used to load from Klever Extension. The private key that is stored in the PEM file cannot be loaded directly into the Klever Wallet.
Using Klever Extension. This method is the most recommended. Clicking on Connect throught Klever Extension will open a window requesting authorization to connect between this page and our wallet. If on that screen we click on Connect we will enter the interface for the creation of tokens/NFTs
If you want to create an account in Klever Extension you can follow this tutorial