with a map.

Okay, here's the deal. Generally, your map is fine. It has a normal size, and all the files are in place. It crashes during loading when it gets to the objects on the map. I've had this happen before, and it could mean that there are one or two objects on the map that aren't quite standard, causing the crash. You need to revert the map to a previous version (no, you can try to recover it as is, but it will take a very long time, and it's unknown what specific objects are causing the problem). Go to the root folder/Editor/H5MMods/ARENA PANDACORE. Pack all the contents of the folder into a zip archive and name it ARENA PANDACORE.h5m. It might not work. At least, in my case, your map, even though it didn't open, somehow managed to write files to the path I specified. Maybe everything has already been overwritten for you, which would be unfortunate. All I can advise is to make a backup copy of the map, open it (the map or the copy, i.e., the h5m file) with an archiver, navigate through the folders, and find the map.xdb file. Open the last one with any text editor. The

tag contains a lot of objects. Each object starts with the opening tag

<item href>

and ends with the closing tag

. The order of objects in the file corresponds to the order in which you added them to the map. That is, the last objects in this list were added last. Go towards the end of the file, to the closing tag

, and delete objects from the end, one by one. Or in batches, if you don't mind. And try to run the map in the editor.

It seems like there's a space in the name of your map, and it seems like you can't use spaces.

You can. I used it.