ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.all() in for loop

Question

So I'm trying to make my first A.I project a Language Translation program using Natural Language Processing and there seems to be an error and I don't know how to solve it.

preds = model.predict(testX.reshape((testX.shape[0],testX.shape[1])))

These predictions are sequences of integers. We need to convert these integers to their corresponding words. So I defined a function to do this:

def get_word(n, tokenizer):
      for word, index in tokenizer.word_index.items():
          if index == n:
              return word
      return None

Then this code will Convert predictions into text.

#convert predictions into text (english)
preds_text = []
for i in preds:
       temp = []
       for j in range(len(i)):
            t = get_word(i[j], eng_tokenizer)
            if j > 0:
                if (t == get_word(i[j-1], eng_tokenizer)) or (t == None):
                     temp.append('')
                else:
                     temp.append(t)
            else:
                   if(t == None):
                          temp.append('')
                   else:
                          temp.append(t) 

       preds_text.append(' '.join(temp))

Here is the error,

ValueError                                Traceback (most recent call last)
d:\ai\colab (1).ipynb Cell 22' in <cell line: 2>()
      3 temp = []
      4 for j in range(len(i)):
----> 5      t = get_word(i[j], eng_tokenizer)
      6      if j > 0:
      7          if (t == get_word(i[j-1], eng_tokenizer)) or (t == None):

And here is the source code where you can find everything you need. Source Code