NatureGreen

It's been a while since I played the B&S and came back to see that there's around 36 things stockpiled to do in Hongmoon Training Room. I clicked on it to see the loading bar go upto around 7/8 full, then it just stops there and waits for what is seemingly ages before it finally decides to say no and freezes my game. I tried turning the computer off and on again, but no dice. Any ideas?