can't start the game

[bl00dy1837]

Under Archlinux with Ren'Py 7.4.4.1439

Full traceback:
  File "/usr/share/renpy/renpy/bootstrap.py", line 326, in bootstrap
    renpy.main.main()
  File "/usr/share/renpy/renpy/main.py", line 617, in main
    run(restart)
  File "/usr/share/renpy/renpy/main.py", line 148, in run
    renpy.execution.run_context(True)
  File "/usr/share/renpy/renpy/execution.py", line 922, in run_context
    context.run()
  File "renpy/common/00start.rpy", line 283, in script
    python:
  File "/usr/share/renpy/renpy/script.py", line 910, in lookup
    raise ScriptError("could not find label '%s'." % str(original))
ScriptError: could not find label 'start'.

While running game code:
  File "renpy/common/00start.rpy", line 283, in script
    python:
ScriptError: could not find label 'start'.