Crash after the game update

[Niconoko]

[code]
I'm sorry, but errors were detected in your script. Please correct the
errors listed below, and try again.

The label start is defined twice, at
File "game/script.rpy", line 4 and
File "game/script2.rpy", line 4.

Ren'Py Version: Ren'Py 6.99.12.4.2187
[/code]

Here's what I got.
EDIT:
Okay, I did a clean reinstall, both game and mod, I played for a while and there's new crash..

[code]
I'm sorry, but an uncaught exception occurred.

While running game code:
File "game/script-ch3.rpy", line 394, in script
return
Exception: Could not find return label (u'D:\Steam Library\steamapps\common\Doki Doki Literature Club/game/script2.rpy', 1523204639, 23948).

-- Full Traceback ------------------------------------------------------------

Full traceback:
File "game/script-ch3.rpy", line 394, in script
return
File "D:\Steam Library\steamapps\common\Doki Doki Literature Club\renpy\ast.py", line 1376, in execute
next_node(renpy.game.context().lookup_return(pop=True))
File "D:\Steam Library\steamapps\common\Doki Doki Literature Club\renpy\execution.py", line 552, in lookup_return
raise Exception("Could not find return label {!r}.".format(self.return_stack[-1]))
Exception: Could not find return label (u'D:\Steam Library\steamapps\common\Doki Doki Literature Club/game/script2.rpy', 1523204639, 23948).

Windows-7-6.1.7601-SP1
Ren'Py 6.99.12.4.2187
Doki Doki, The Normal VN! 1.4.9
[/code]

[Skull220]

Try using the DRM free version, not the steam version.

[luigiinthehood]

Also is the master file and 1.4.9 update file different and if so, how do you install the update file?

[adopolus17]

try my guide on how to fix this it should work hopefully
https://www.youtube.com/watch?v=GRl23jkhNaM