Answer from @Fox :
The service domain has moved, for the action to work, in the "Server URL" option you need to specify the value "api.cap.guru".
Extensions don't work.
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All the extensions I download don’t have internet access, even though the internet itself is working — websites open fine. But the extensions ask me to enter the seed phrase, and then I can log in with a password, yet the wallet itself doesn’t load and doesn’t work. I download the extensions through the browser’s settings menu. I’ve tried installing them using the extension ID and also downloaded them to my PC and pointed to the file path — the result is the same.

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What extensions are you talking about?
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@BAS-Viet-Nam thnk!