QS-S crashes to desktop when loading an area in the "The Immortal Lock" map.

[Moonkeytest]

The (recently released) map can be found here:

https://www.slipseer.com/index.php?resources/the-immortal-lock.371/

After choosing the difficulty (although I could pass even without selecting one), you enter a laser-probe room.
After this, you enter a slipgate chamber. You can enter the slipgate without issues and an animation plays, but upon actually loading the map you get the following error:

"COM_LoadFile: not enough space for maps/immortal.bsp"

Attached are the error screen and log file.

qconsole.log