My boosters are gone

Many, many people have had this problem, including myself. To unlock the boosters, you need to replay the following levels.

To unlock Shovel: Play Level 5

To unlock Tractor: Play Level 8 

To unlock +1 Bonus : Play Level 13

To unlock Color Collector: Play Level 23

To unlock Egg cracker: Play Level 31

To unlock Clean-Up: Play Level 72

Just playing these levels doesn't always work. If that doesn't fix the problem, then save your progress and log out of the game. This will start you at level one. Force close the app, go into app settings and clear the cache. Then play the game without logging in until you have unlocked all of the boosters. If that fails, then your only option appears to uninstall and re-install the app. If you do that, then there is an additional step you need to do. After uninstalling the app you should do the following as a precaution.

Go to apps and find the app called 'Settings' 

Locate the menu called 'Apps' 

Scroll down till you find the 'Google Play Store' 

From here click on 'Clear data' then clear cache. 

Please notice that you will get a warning when clicking the 'Clear data' button - not to worry, it's just a reset. 

Restart the device and see how it goes.

PLEASE NOTE!

By uninstalling the app, you will lose all of your boosters stored on the device. But since they are locked, you have nothing to lose.

Hi @claudiawojtyla there is no need to post a screenshot, as I know exactly what @Pollisimas is talking about. The instructions I provided work.