Code:
WARNING: Line 1: Maincfg: unknown word 'MODBY'
WARNING: Line 3: Maincfg: unknown word 'NUMEMBLEMS'
WARNING: Line 46: Level header 1: unknown word 'SCRIPTISLUMP'
WARNING: Line 50: Level header 2: unknown word 'SCRIPTISLUMP'
WARNING: Line 63: Couldn't find music named 'MUS_'
They don't affect anything notable, don't worry about them.