Battletech linux version fails to install

[CTalvio]

Traceback (most recent call last):
  File "<frozen runpy>", line 198, in _run_module_as_main
  File "<frozen runpy>", line 88, in _run_code
  File "/heroic-gogdl/gogdl/cli.py", line 67, in <module>
    main()
  File "/heroic-gogdl/gogdl/cli.py", line 62, in main
    function(arguments, unknown_args)
  File "/heroic-gogdl/gogdl/dl/managers/manager.py", line 67, in download
    self.download_manager.download()
  File "/heroic-gogdl/gogdl/dl/managers/linux.py", line 173, in download
    self.setup()
  File "/heroic-gogdl/gogdl/dl/managers/linux.py", line 113, in setup
    installer_data = dl_utils.get_json(self.api_handler, installer["files"][0]["downlink"])
                                                         ~~~~~~~~~^^^^^^^^^
TypeError: 'NoneType' object is not subscriptable

Download and install works when using version 7.2 from the AUR, but not with 1.0.1 shipped with Heroic or 1.1.0 from this repo.