My blue 4.0 says no command when it comes on

My blue 4.0 advance worked fine then one day it just started saying no command when I turn it on what to do I tried rebooting and didn't do anything

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0