messages are not getting processed in smq2

Hi Experts,

Iam new to PI.  The messages in sxi_monitor are with green flag.  I found that queues are not processing meassages automatically.  When i unlock the queue then it is processed. 

I have tried deregestsaion, Registration and activation in sxmb_adm ---> manage queues .

after registration when i click activation it is giving msg like "Registaion Cancelled".

The status of SMQR is actv.

The status of SMQS is inactv.

Please help me with this, how can i do.  Thanq in advance.

Regards,

Santhi