I have just played this level was able to finish it in my first try. My ideas::
1) Choosing a companion "Grower" makes the job easy for us.
2) Also out of the 8 sheep, we have to feed only 5 and there is enough grass to feed them.
3) And keep some shovels handy. If you are closer to your goal, try to use the "Color Collector Booster' (the dog) for either apples OR carrots OR may be both!!
@Samar it could be either that it has been changed or that it hasn't been updated for you yet. Check your app store for updates to make sure none are waiting if playing on a device