4. Where prospective non-sophisticated investors do not provide the information required pursuant to paragraph 2, or where crowdfunding service providers consider, on the basis of the information received under that paragraph, that the prospective non-sophisticated investors have insufficient knowledge, skills or experience, crowdfunding service providers shall inform those prospective non-sophisticated investors that the services offered on their crowdfunding platforms may be inappropriate for them and issue them a risk warning. That risk warning shall clearly state the risk of losing the entirety of the money invested. Prospective non-sophisticated investors shall expressly acknowledge that they have received and understood the warning issued by the crowdfunding service provider.