KeyError: 'â'

[balbinuvm]

I'm getting the following error.

Getting rhyme scheme.
67%|███████████████████████████████████████████████████████▎ | 8/12 [00:04<00:02, 1.64it/s]
Traceback (most recent call last):
File "rhyme.py", line 244, in
poem.get_rhyme_scheme_text()
File "rhyme.py", line 215, in get_rhyme_scheme_text
self.rhyme_scheme = [stanza.scheme_to_text(stanza_num=i) for i, stanza in enumerate(self.stanzas)]
File "rhyme.py", line 215, in
self.rhyme_scheme = [stanza.scheme_to_text(stanza_num=i) for i, stanza in enumerate(self.stanzas)]
File "rhyme.py", line 172, in scheme_to_text
rhyme_blocks = self.get_rhyming_blocks()
File "rhyme.py", line 103, in get_rhyming_blocks
self.get_rhyme_scheme()
File "rhyme.py", line 83, in get_rhyme_scheme
if self.does_rhyme(preceding_word, word):
File "rhyme.py", line 57, in does_rhyme
pair = self.prepare_pair(word1, word2)
File "rhyme.py", line 40, in prepare_pair
int_seq = self.get_char_to_int(seq)
File "rhyme.py", line 30, in get_char_to_int
int_list = [corpus.char_to_int[char] for char in word]
File "rhyme.py", line 30, in
int_list = [corpus.char_to_int[char] for char in word]
KeyError: 'â'