Registration - Sorry, but this username has already been taken.

Hello Guys, I have problem with registration, when someone try to create an account on my forum. He gets this message - Sorry, but this username has already been taken. Even do i have only 10 people registered. So something not working. I Don't know where is the problem. I have phpBB 3 version and using Chrome. Link to my forum - http://newsongsweekly.forumotion.com/

I don't see any problem on my settings :


Help would be appreciated. Thank You

Hello,

Can you please click "no" on the option : "Unauthorize subscriptions made with the most commonly used spam usernames" and see if this works

Thank You Leeloo That was it. Appreciate it.