There are many connection issues when using the MetaMask wallet to connect to xlog. I found a method in the search results of the "First Web3 Blog's Journey" (https://brulligno.xlog.page/web3-with-xlog) and followed it as a tutorial to install the plugin through the browser, claim CSB, and successfully connect to xlog.
Since I don't have a computer with me, all the operations were done on my phone. I used the Russian browser browser and installed the MetaMask plugin in the Chrome version. After installation, I logged in and opened the homepage of chain-list. Then, I clicked on "Connect Wallet" to link MetaMask. After that, I entered "Crossbell" in the search box and clicked on "Add To Wallet" in the search results to confirm. At this point, the network configuration for Crossbell will appear, which can be used for setting up the MetaMask software on the phone and also display the CSB token.