Is it a bug?

Following up on the last wood-chopping game, here's another one. I can only say it's a reskin, exactly the same. Even the way to level up is identical. I got to level 11 (for me, level 300) by myself in the first stage (newbie village), just hauling wood. However, they added a quest to process golden wood. The gems are a bit scarce, but at least there's a quest now. Also, for some reason, there are no ads at all. I can't even watch ads to get wood, nor can I increase my running speed or upgrade my saw. I don't know why they set it up this way. Ads started appearing the moment I opened the next area.