StuckInATree

Noble

Boosters and messages don't transfer as they don't get synced along with progress and gold bars. They stay on the device they were received on so if you still have your old phone handy you'll be able to use them. The only way you can get boosters transferred to a new device is if they were purchased. 

Have you gone through the suggested troubleshooting given here yet? https://care.king.com/en/candy-crush-saga/loading-crashing-issues-ios

Gold bars and progress are synced to your Facebook if you connect it, once synced it doesn't matter what happens to the game app (be it reinstalling, resetting, changing phones), your progress and gold bars will appear when reconnected to your account in game. It's only stuff like boosters and messages which you will lose…

Progress doesn't get linked to anything else other than Facebook and Kingdom. As long as you actively connected your game to either Facebook or Kingdom, your progress will be saved and synced to it. If you did, when you reconnect to that account in the game again, the progress from the point where it was last synced will…

What does the message say about your storage exactly? 

That's how it's always worked, if you don't complete the level you don't get to keep the orange candies you've collected. http://candycrush.wikia.com/wiki/Dexter's_Delight

First thing to do is go through the steps suggested here: https://care.king.com/en/candy-crush-saga/loading-crashing-issues-ios You have to keep in mind that this can depend on your device, unfortunately unlike dedicated gaming devices (ps4,xbox one,DS,etc) at some point your device hardware may not be able to handle…

Strange, do you stay connected to Facebook in the game or do you sign that out as well before closing the game? If you're using Facebook by the way you might want to thing about joining a group where members send each other lives and such: https://www.facebook.com/search/groups/?q=candy%20crush%20jelly%20saga

8.59 kb of free space not a good start!!! Your tablet is going to struggle to run anything smoothly with that little memory available! Try clearing it as much as you can, I generally always make sure to leave at least 1gb of breathing space on my devices. I'm pretty sure you'll see a change after that, if not try going…

iPad 2 isn't listed in the recommended devices but iPad 3 is. Might want to go through the suggested troubleshooting given here: https://care.king.com/en/candy-crush-saga/loading-crashing-issues-ios