Sims 1 legacy edition- Why does it do this? Not rendering anything

Same thing is happening to me now but only since their latest update. I made a family, moved them in, built the house, played for hours. All day and all night basically. I saved multiple times as I normally do in case of possible crashing, yet the next day I went into the game and bam! I couldnt click on that house to play it because when I did, the game crashed. So i gave up. Then the next day, i went to play and then that house was actually all missing. The family, the house, it was a vacant block again. I didn't move them out and bulldoze the house. It was just gone. 

Hi it worked! But I now have no sound:( 

Thank you I will try and let you know how I get on!! 

could you also help me please im having the same issue:(