If it was routine 4B error, if it was not routine HR. Unless CF was camped under it and should have easily made the catch it's probably a HR and scored a hit. And at 12U I'm guessing it was probably not routine but without being there couldn't say for sure.I was probably 12 and the pitcher threw a no hitter, I think. A fly ball was hit to CF and it bounce off his glove and over the fence. How do you score that? No hitter, HR, or what. They lost 1-0.
If it was routine 4B error, if it was not routine HR. Unless CF was camped under it and should have easily made the catch it's probably a HR and scored a hit. And at 12U I'm guessing it was probably not routine but without being there couldn't say for sure.
But like others based on the actual description it's probably an error.