Hi :)
line 2: fou → fous
last line of the chorus: "Pas plus" would be "not more". I think "no more" would rather be translated into "plus jamais".
3rd stanza, line 3: "nous sommes un seule" → "nous ne faisons qu'un"
And it's just a detail but in French there's a space before ? : ; and !
So "Qu'est-ce que l'amour?" should be "Qu'est-ce que l'amour ?".
My own translation
Ma propre translation
Mi propia traducción