Poorly develop map with lot's of memory leak and error.
And from your map description, it seems like it was incomplete as well which make this map utterly useless and pointless.
For me, posting a incomplete map is equalvilent of posting a trash. Map section is not a place for you to post incomplete map. I suggest you to post it at map development section if you have any incomplete map that need opinion.
And based on the map condition, I would said the quality it too low and beyond repair. If you fix this map, it would probably take a extremely long time to do so.
My suggestion ? Delete this map from your computer files and start a fresh one.