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hi all, so i get another problem with rank tracking. We’re unable to retrieve your ranking. and keyword difficulty tool The Keyword Difficulty tool is currently unresponsive due to difficulties with real-time rankings retrievals. We apologize for the inconvenience and are working to fix it. i seem to keep getting this error messages these past 2 days and this is affecting the numbers on my campaign (history n analysis) can someone tell me what's wrong? thanks,

so i'm quite new at using seomoz so maybe this is a silly question. a couple of weeks ago i added 6 url to tack weekly and it's been working so far. since then i've been wanting to add several more but it seems that the list is limited to 6. at first i click the checkbox on track column but when that didn't work i updated each url then click "track this url" --> that didn't work either. can anyone help if maybe i'm doing something wrong? thx