Sent back to previous levels and lost all boosters

Hi!

I've been playing this game for years now, and never had an issue. I even buy gold bars now and them because I enjoy the game and I like to support the developers.

Recently, however, there was all this isse with the app not connecting to internet. After the last update, I was finally able to connect to the internet, but I found out I had gone back like 10 levels and, on top of that, I've lost all the boosters I had paid for with gold bars I had bought. Is there a way to fix this? This is pretty bad, not only because I'm stuck on a level I had already passed (and is pretty impossible to pass without boosters), but mainly because I used money to buy boosters and now these boosters have disappeared. I will not be spending more money on the game in the future if this cannot be solved, it kind of feels like a rip off.