I keep getting a path error when attempting to conduct an LDA with the Mallet package

Question

I'm attempting to conduct a Latent Dirichlet Allocation on a list of text within an Excel sheet.

I access the mallet package with the following code:

!wget http://mallet.cs.umass.edu/dist/mallet-2.0.8.zip
!unzip mallet-2.0.8.zip

I also designate the environment and path for mallet with the following code:

os.environ['MALLET_HOME'] = 'C:/Users/btmin/Downloads/mallet-2.0.8 (1)'
mallet_path = 'C:/Users/btmin/Downloads/mallet-2.0.8 (1)/bin/mallet.bat'

Finally, I try to evaluate which n-topic model offers the best coherence score as follows:

for number_of_topics in range(2,15):
  print(number_of_topics)
  ldamallet30 = LdaMallet(mallet_path, corpus=doc_term_matrix, num_topics=number_of_topics, id2word=dictionary)
  gensimmodel30 = gensim.models.wrappers.ldamallet.malletmodel2ldamodel(ldamallet30)
  coherencemodel = CoherenceModel(model=gensimmodel30, texts=doc_clean, dictionary=dictionary, coherence='c_v') #try different coherences
  coherence_scores[number_of_topics]=coherencemodel.get_coherence()

Unfortunately, I get the following error:

2
---------------------------------------------------------------------------
CalledProcessError                        Traceback (most recent call last)
<ipython-input-84-a24b98543e01> in <module>()
      2 for number_of_topics in range(2,15):
      3   print(number_of_topics)
----> 4   ldamallet30 = LdaMallet(mallet_path, corpus=doc_term_matrix, num_topics=number_of_topics, id2word=dictionary)
      5   gensimmodel30 = gensim.models.wrappers.ldamallet.malletmodel2ldamodel(ldamallet30)
      6   coherencemodel = CoherenceModel(model=gensimmodel30, texts=doc_clean, dictionary=dictionary, coherence='c_v') #try different coherences

3 frames
/usr/local/lib/python3.7/dist-packages/gensim/utils.py in check_output(stdout, *popenargs, **kwargs)
   1930             error = subprocess.CalledProcessError(retcode, cmd)
   1931             error.output = output
-> 1932             raise error
   1933         return output
   1934     except KeyboardInterrupt:

CalledProcessError: Command 'C:/Users/btmin/Downloads/mallet-2.0.8 (1)/bin/mallet.bat import-file --preserve-case --keep-sequence --remove-stopwords --token-regex "\S+" --input /tmp/772bcd_corpus.txt --output /tmp/772bcd_corpus.mallet' returned non-zero exit status 2.

Any ideas? I've seen some suggestions from similar errors that the path is designated incorrectly, but I'm unclear on how it's incorrect.