You don't collect rewards for dayly. They come automatically.
Also it Sounds that game Center or google play Are not working as intended in here. Try to shut them down and restart / relogging...
Quest mode is more random, longer game. More bugs Also. You collect XP like in "real RPG". I like that mode a lot.
The progression is slover. You lose the coherent story, but Also it should be different each time you play.
Dayly challenge rewards Are automatic, so you don't have to redeem them. Sometimes They don't get registered but you should get them by closing the app and restarting the app. Some UI clitch.
Sometimes, but check out that you really have same Gamecenter account activated in the both devices. It may be wice to force close both devices and the relog in the Gamecenter.
Not enough system memory?
Try turn of effect from the settings and see if it has any effect.
It could Also be a system bug. I have read Many problems with hunwey tablets. That some games and test programs just don't work with them. So an update to your phone software may help.
That is most likely reason. If you use it another characters turn the game may check the Divine of character whose turn it is, and find out that there is not Divine... there has been cases that it has happened.