The title of the article is either written by someone totally stupid or ignorant. In Latin Porta can mean depending on context either door or gate, it is the same way in Italian, porta means door or gate. The Holy Door of Saint Peters which is only opened for Jubilee years was opened last night for the first time since 2000 when Pope John Paul II opened it.
The message of this years, like all jubilees is for Catholics to first embrace the forgiveness (go to the Sacrament of Confession] and then seek reconciliation with each other (family members, friends, or parishioners that maybe we have had a fallen out with].
But in the Bible, Jubilee is every 50 years.