The longest

This is the merge game I've been playing the longest. I started it for a quest, and because the story was solid and interesting, I've been playing for over a year and even made small purchases. However, they now require more helicopters than before, and when I watch ads like Coupang, the game often crashes, and I don't even get the rewards. It's not like it used to be, and it makes me sad ㅠㅠ