Hi, I received an e-mail from a new user saying he was not able to confirm his account. This appears to be the first time this has happened to my knowledge. This is the link he got in his confirmation e-mail: http://www.mooclab.club/account-confirmation/1165/email?c=jMyOVSRCO8jXiAzO When he clicks on it, it takes him to an error page saying "Your account could not be confirmed". Any ideas why this happened with this particular user? Thanks.