problems on my game

Thanks for the screenshot but you need to see which level you need to collect the last companion on in order to get the rewards.

These tre gray ones, are the ones you need to collect so just like @piaandersson said, if you click on the grey one and see what level it will be collected. 

So there are no issues, you just need to collect all 3 animals in order to get the rewards.

Hope this clears out any doubts 😊

Thanks for the tag @PummyRaj 😉