Hi - I can open your public map id:98089c942bd547c98e0fd6f402730d44 OK - it's got quite a lot of features stored within the map, so it's a bit slow opening, but it opened OK for me. So I dont think there's anything funamentally corrupt about this map, maybe the retrieval of the map with all those features causes a problem in your case? I know that different browsers will have different abilities to display lots of features, so if you're having problems with the same map it may be worth experimenting with some different browsers (I used IE8, but I understand Chrome and Firefox may be more efficient for showing lots of features).