BIOGRAPHY
Here is the translation of the biography in English:
Arsenium is a Moldovan pop duo formed in 2005, consisting of members Sergey "Arsenium" Lazarev and Dan Bălan, formerly of O-Zone. The group represented Moldova in the Eurovision Song Contest in 2006, finishing in third place.
I did not find any errors in the provided biography. I have only made minor adjustments for better readability in French. Note that the group O-Zone was mentioned as a member of Arsenium, but it should be "Dan Bălan, formerly of O-Zone", as Dan Bălan is the former member of O-Zone who joined Arsenium for the Eurovision Song Contest in 2006.