Error: "I'm sorry, but an uncaught exception occurred."

[RuanChistopher]

When monika's dialog occurs, in which she asks about only researching her inappropriate content on the internet, this error occurs.

I'm sorry, but an uncaught exception occurred.

While running game code:
File "game/script-ch30.rpy", line 1513, in script call
File "game/script-ch30.rpy", line 1513, in script call
File "game/script-ch30.rpy", line 1513, in script call
File "game/event-handler.rpy", line 2530, in script call
File "game/script-topics.rpy", line 4954, in script
Exception: String u'Eu sei que ainda n\xe3o estamos t\xe3o [avns em nosso relacionamento...' ends with an open format operation.

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

Full traceback:
File "game/script-ch30.rpy", line 1513, in script call
File "game/script-ch30.rpy", line 1513, in script call
File "game/script-ch30.rpy", line 1513, in script call
File "game/event-handler.rpy", line 2530, in script call
File "game/script-topics.rpy", line 4954, in script
File "C:\Program Files (x86)\Steam\steamapps\common\Doki Doki Literature Club\renpy\ast.py", line 613, in execute
renpy.exports.say(who, what, interact=self.interact)
File "C:\Program Files (x86)\Steam\steamapps\common\Doki Doki Literature Club\renpy\exports.py", line 1147, in say
who(what, interact=interact)
File "C:\Program Files (x86)\Steam\steamapps\common\Doki Doki Literature Club\renpy\character.py", line 868, in call
what = what_pattern.replace("[what]", sub(what, translate=translate))
File "C:\Program Files (x86)\Steam\steamapps\common\Doki Doki Literature Club\renpy\character.py", line 850, in sub
return renpy.substitutions.substitute(s, scope=scope, force=force, translate=translate)[0]
File "C:\Program Files (x86)\Steam\steamapps\common\Doki Doki Literature Club\renpy\substitutions.py", line 232, in substitute
s = formatter.vformat(s, (), kwargs)
File "/home/tom/ab/x64lucid-deps/install/lib/python2.7/string.py", line 563, in vformat
File "/home/tom/ab/x64lucid-deps/install/lib/python2.7/string.py", line 572, in _vformat
File "C:\Program Files (x86)\Steam\steamapps\common\Doki Doki Literature Club\renpy\substitutions.py", line 157, in parse
raise Exception("String {0!r} ends with an open format operation.".format(s))
Exception: String u'Eu sei que ainda n\xe3o estamos t\xe3o [avns em nosso relacionamento...' ends with an open format operation.

Windows-8-6.2.9200
Ren'Py 6.99.12.4.2187
Monika After Story 0.12.7

[multimokia]

I take it you're using a translation. You'll want to report this to the creator of the translation you're using