I just saw that you are not even in a village. User CP > Permission Groups, go there and apply to a village. Make sure that village accepts new members or you will be declined immediately. Then after getting accepted into a village, goto User CP > Permission Groups, scroll down and select - Show me as a member of this group - or something like that.
You will know if you are accepted or not by either the Kage of the Village that you were accepted into tells you by VM/PM, or you check in the Permission Groups and you will see the Banner of the Village you got accepted into.
Once you are accepted into a village you need to put on that village's banner as it is a rule of the NW. Failing to do so can like you said lead to you getting kicked from the village.