Users of user managers can't connect after disconnect

I have a PPPoe Srever + radius and user manager for controling users
but every users I made in User manager after disconnect can’t login to network again
I don’t know what I did wrong
I need urgent help

Maybe check if there is still a open session for that user that is unable to connect.

Also I have found that sometimes the connection stays open on the router running userman and if a client tries to reconnect the connection is dropped because there is already an open connection.

Thank you for your help
I checked it
I Understood my mistake was in profiles in user manager
I had been entered a very low value in Download limit field instead of rate field