tmsh :TCP socket open failed: Connection refused

Hi, I am new learner F5 entity.

 

In tmsh getting these text for each and every command executed.

 

TCP socket open failed: Connection refused Socket error connecting to 127.0.0.1:6889 XXXXXXXXXXXXXXXXXXX(Active)(/Common)(tmos.ltm)

 

Will you pls guide me to rectify this error.

 

Thanks in advance.