Issues with images

[Onigiri648]

At the moment Monika says she's going to show me something, there's always some error. I've tried to solve it, but I don't really understand what the problem might be.

Here's the code problem:

I'm sorry, but an uncaught exception occurred.

While running game code:
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 "C:/Windows/System32/script-ch30.rpyc", line 2198, in script call
File "C:/Windows/System32/event-handler.rpyc", line 3119, in script call
File "C:/Windows/System32/script-topics.rpyc", line 4962, in script
File "C:\Users\ofici\Desktop\Teste 2\renpy\ast.py", line 613, in execute
renpy.exports.say(who, what, interact=self.interact)
File "C:\Users\ofici\Desktop\Teste 2\renpy\exports.py", line 1147, in say
who(what, interact=interact)
File "C:\Users\ofici\Desktop\Teste 2\renpy\character.py", line 868, in call
what = what_pattern.replace("[what]", sub(what, translate=translate))
File "C:\Users\ofici\Desktop\Teste 2\renpy\character.py", line 850, in sub
return renpy.substitutions.substitute(s, scope=scope, force=force, translate=translate)[0]
File "C:\Users\ofici\Desktop\Teste 2\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:\Users\ofici\Desktop\Teste 2\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 0.12.14

[Onigiri648]

Keep in mind that my game is translated into Portuguese, so there are some sentences in another language