problem ( current licence allow only 20 active sessions)

hi
i have router board 951-2n , and the problem shown as ( current licence allow only 20 active sessions ) and in active 2 or 3 users only
how can resolve this problem

There is anyone here

Open up your winbox and check how many active users are, If there were too many of them just kick them out else if your statement is right you need to email support.

in active ,there are 3 users only