Google Login Bug Wipes Old Account in Zuuks Games' Truck Simulator

I can no longer access my old account in Zuuks Games' Truck Simulator. I deleted and reinstalled the game, and when I click the option to log into my old account, a brand-new account opens instead of mine, and my progress appears to be completely lost.

Up until about 3–4 weeks ago, I was able to log into the game without any issues using my Google account. I had 4 trucks, 1 tractor, and 1 car on my old account, and I invested a lot of time into it. Now, even though I log in with the exact same Google account, my old account does not load.

I demand that this issue, which started after I deleted and reinstalled the game, be fixed. I want my previous progress and vehicles restored, and my access to my old account reinstated.