Invalid yes. But proof that man and his psyche are such that he needs to have assurance of the forgiveness of his sins, and how much our Lord knew and loves mankind by giving us so great a sacrament.
I’d be interested to know who sponsors the site. There was a schismatic “bishop” an Old Catholic fellow in Ireland, the guy who attempted ordination on Sened O’Conner, (Sp?) the pop singer who tore up the photo of Pope John Paul II on Saturday Night live. This fellow was offering a confessional via telephone and internet, at one time, and if memory serves (which it sometimes does for me) he accepted Visa and Mastercard making it both invalid and sinful for attempting to take money for the sacrament of penance.