did you finish (ALL) of the current beast tribes you have taken. if you take all 12 allowence you have to finish all the 12 quests from each beast tribe to get the next day. they do not reset individually. so if you take 3 from vanu vanu and finish them but took 6 of the Amaljaa and did not finish those. you still need to finish what you took from Amaljaa to get the vanu vanu reset again for the new day.

so all beast tribes share the same day reset. if you have any active the next day will not show.