I was just playing i passed level 724 i used boosters and the game just freeze and i could not conti

Welcome to the friendly King Community @nuv19 I am sorry to hear your game froze. Is it still frozen? What you can do:

• Force close all apps and restart your device making sure to leave it switched off for at least 10 seconds before turning it back on again.
• Look for any updates for your device and the game app - check out the handy video at the end of this article!
• Make sure that you have sufficient memory free on your device. We normally recommend having at least 2GB free. If you have less than this be sure to free up some memory to enable the game to run as smoothly as possible.
• As a last resort, we can try reinstalling the game as it usually fixes most issues. Simply make sure that your game is safely backed up to your Facebook or Kingdom account before proceeding with this step. *Please also note that any boosters or extra lives stored in the game may also be lost during this process!!

Do you have any other questions feel free to ask.