For anyone has problem to access task even they have badge level 1, 2 or 3. There is a one reply from CF posted in Clixsense Forum. However, the reply is ridiculous. There are so many existing problems currently handle by CF. Just need to be careful while doing task. If you accidentally get banned, it will take ages to fix by CF. People was banned in error one week ago are still at the banned stage right now. Anyways, here is the reply from CF regarding the problem accessing the task with members having badges.
"Unfortunately that relates to a current bug in our system. That person had their work rejected several times by our Customers for work they completed on Clixsense. This would have removed her "Level" badges. Unfortunately it does not remove the Level badges from all of her accounts at this time. As a result, she is still able to access some of those Jobs from other sites. We hope to have this fixed in the near future. "
"http://www.clixsense.com/en/Forum/146709/Crowdflower_reply_about_%27Not_Qualified%27_messag es!"