So i've just cleared the cache in recovery mode on my rooted Galaxy S4 (I9515) and i rebooted. And now it takes a long time to get past the splashing samsung sign, and when it does i get a bout a hundred popups saying that apps have stopped working, and after that the screen remains black, and all i can do is hold te power button to get the shutdow, restart etc. menu. How can i fix this without factory reset? Dont know if it matters but i use nova launcher as the default launcher