I get this message after trying to upload: (I had to delete most of the message cause this forum states "Your post looks too spamy for a new user, please remove off-site URLs.)
Spoiler: show
I manually entered in ACU units in the .save file, just like in Gap of 64 ACUs. The old client, not Downlord's, had no problem with it. Hopefully it's unrelated to ACU units. Which looks like this:
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I've worked on this for like 12 hrs building the map markers and stuff and then making sure there were no breaks in the code and any other errors. I'm still thinking and trying. Oh, and it also runs fine when testing it under another map name. All markers and units are there. Just uploading is Error 500. I'm sure I labeled the files and everything right.