Giuliano Cardellini Poet

Error type: "Forbidden". Error message: "The provided API key has an IP address restriction. The originating IP address of the call (213.152.198.131) violates this restriction." Domain: "global". Reason: "forbidden".

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Check in YouTube if the id giulianocardellini belongs to a username. If the user id is correct, check that the channel of the user has list of "favorites". Check the FAQ of the plugin or send error messages to support.