NOF Premier Messaging..I'm having troubles w/it allowing me to access it on 1 child's profile ...

I can't even get into the messaging option on one of my profiles to set the messaging option on.  Every time I click on it, I get kicked out of online family with an error message.  On the other profiles I can't set the friends messaging lists to block and monitor or not monitor.  One of the profile has a list of a couple numbers, but it is not numbers that the profile uses from it's phone very often... then other profiles do not even have any numbers listed.  It would be wonderful to have some intsrtuctions with how to make this feature work!  Thanks.  Jen