Guys, hey, I got that problem too like all of you overhere : I lost my diamonds (from over 1200 to 120), coins (from over 40k to just 1000), Arena gauntlets gained? (from 10 to 40), mints (from 3000 to 30), but I gained an insane amount of sprouts? (from over 45 to 690), no Feastivus tokens and some sprouted plants in the greenhouse that I didn't grow and also the pinata for Lemonaid reseted back to 10 Diamonds, also my Arena progresse reseted to just 20? But I saw that my account wasn't registered. Press the Cloud Button at the Start Meniu and make sure you have a strong internet connection. At first I tried to Force Sync Data, but it failed. I registered back my email that I used for my account, asking on the browser just a verifying code and after it registered successfully back, I pressed the Force Sync Data button back. First time I said error, it could not enable but a second it, IT DID! and I closed and reopened the game and EVERYTHING went back to what it was! I even have screenshots to back this up. Everything that I listed got back to their original values and also those added amounts from nowhere disappeared and the progress for Arena and Lemonaid pinata came back.
P. S. I wrote this as a reply on another discussion, but I wanted everyone to see it. I will try to attach the screenshots here. Firsts 8 are before the recovery, or you can see the other 2 in which the Coins, Diamonds, Gauntlets, Mints and Tokens came back.