Hi and welcome back to the forum.
The rank requirements have actually changed a while back (i'll see if i can find that post for you in a minute).
Before the clraik rank could be achieved by essentially spamming the forum.
Now the rank upgrades also require you to gather rep by being helpful around the forum.
As you do not have enough rep available your rank was downgraded to newbie.
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You can find all information about this change to the rank requirements in (you need an account to see links)