(adsbygoogle = window.adsbygoogle || []).push({}); i can sign in on my account when i try sign up for a new one it says this system is banned or suspended

First off is your ps3 on CFW?, Second did you do any modding?, Third did you change the console ID? From What I can tell from your description You've been suspended ( Rarely) or Ban ( Most likely).

yes its on cfw but i can sign in on my account then try to sign up for a new one then it says that but then i can go and sign back in my other account

Have you been making too many new account? Sony has a limit on how many account a PS3 should have and have you did any modding? Chances are give it a couple of days and if you don't have any errors when signing then you got caught by Sony. it's only a couple of days later they block your Console. Happen to a friend before; He couldn't sign in certain accounts with the same message as you but could with the one he uses the most. Days later Sony Banned his console.

no i didnt do any modding but i know anyway theres always a chance of getting banned

My advice is to stay off PSN and internet connection for awhile and see where it goes from there. If you did get ban I would advise avoiding a call to Sony Customer support as unless you get a very nice Rep. You are just going to be ignore and make the situation worse if it was just a suspension.

thanks for advice