BuddyPress.org

Hello! I am trying to create a social network having the buddypress 5.0 with the update of the last wordpress and I am having problems doing trial and error when creating a user and logging in but it does not let me settle with the user once it has already been registered!
In the social network I have put several profiles (user and professional) and with neither of them it allows me to access the network being already registered! I need help!!