Genshin World?!

BoBoiBoy, Y/N, and their friends accidentally entered the world of Genshin Impact, a game made by MiHoYo. Now they have to find a way to charge the power sphere that brought them here, Gamebot. But there's a problem. Gamebot is a power sphere and power sphere needed energy and a specific charges to activated them. Question is,

How do they do that if the world they're in is a world that took place in a very old era?