Forum:NB: the wiki isn't letting me edit articles

Could someone help me!? This wiki isnt letting me edit pages EVENTHOUGH Im logged in! the page im trying to edit is Star Wars: The Clone Wars (novels), but every time I click save changes, this stupid notice keeps telling me:

"You appear to be attempting to add an external link while having no or very few prior contributions to Wookieepedia or lacking a registered username of a reasonable age. Assuming you're not a spambot, register a username and go do something else useful for a while before trying again."

IM NOT TRYING TO ADD A LINK! WHY IS IT DOING THIS!? PLEASE, I NEED HELP!