key limit error

[NaiNy]

here can any one solve my prb
when i create a client account by using client.exe in command prompt
when i applying the command and press enter
it gives me an error
error during client creation: Your key limit's dont allow client's creation
ANyone plz tell me that who can i deal with this problem
thnx in advance
regards
NaiNy

 

[ColorPrint]

check your license key and upgrade it if it is necessary