Please help!

I spent more than 5 dollars that I earned WORKING HARD on the full version of this game last year, I had to delete it and now I get it again and it says I have to pay for everything ALL OVER AGAIN, there isnt even a "restore purchases" button! Im literally almost crying right now, this was my favourite game and I cant even have all of the animals with the money that took a month to earn! PLEASE FIX IT IM SO SAD!

Lushula about Pet World - My Animal Shelter, v3.6