“Telegram cannot provide any guarantees, so proceed at your own risk” is translated as “O Telegram não pode prover qualquer garantia, então proceda por sua conta e risco”. The verb “provide” is translated literally as “prover”, but in Brazilian Portuguese this verb has the sense of “supplying”. A more formal, appropriate translation for that is the verb “oferecer”, which has the same sense of “provide”. “Any guarantees” was translated in the singular form, and the word “own” was not translated at all. The correct translation for this sentence is “O Telegram não pode oferecer quaisquer garantias, então proceda por sua própria conta e risco”.