This exceptions is thrown:

`An exception occured in callback_chrono_send_top_tweets:

Traceback (most recent call last):
File "/usr/local/lib/python3.8/site-packages/pandas/core/indexes/base.py", line 3361, in get_loc
return self._engine.get_loc(casted_key)
File "pandas/_libs/index.pyx", line 76, in pandas._libs.index.IndexEngine.get_loc
File "pandas/_libs/index.pyx", line 108, in pandas._libs.index.IndexEngine.get_loc
File "pandas/_libs/hashtable_class_helper.pxi", line 5198, in pandas._libs.hashtable.PyObjectHashTable.get_item
File "pandas/_libs/hashtable_class_helper.pxi", line 5206, in pandas._libs.hashtable.PyObjectHashTable.get_item
KeyError: 'level'

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
File "/daily_word_bot/app.py", line 288, in send_word
word_data = self.word_bank.get_random(levels, exclude=exclude)
File "/daily_word_bot/word_bank.py", line 57, in get_random
df_candidates = self.df.loc[(~self.df.index.isin(exclude)) & ((self.df['level'].isin(levels)) | (self.df['level'] == ''))]
File "/usr/local/lib/python3.8/site-packages/pandas/core/frame.py", line 3458, in getitem
indexer = self.columns.get_loc(key)
File "/usr/local/lib/python3.8/site-packages/pandas/core/indexes/base.py", line 3363, in get_loc
raise KeyError(key) from err
KeyError: 'level'`

When command /info is used, the contributors are listed in plain text. Would be great to add the link of it's github profile present in the fetch contributors response

Add the command /blockedwords to retrieve the words that you already blocked

Otherwise an exception is raised & user does not receive them