Floorboards in my upstairs hallway are extremely uneven, really creaky and moves when walked on, to the point it feels like it will collapse. The living room below has several nails which hold plasterboard in place showing in cieling(moving downwards. Above a doorway upstairs where floorboards are creaky a plasterboard wall is cracked and moving away from ceiling. I'm a single parent, and my landlord is blaming my children for jumping upstairs!! But he won't send anyone out to look at it until lock down is over. But is it safe??