Error when choosing heros

[Parysrar]

error in command line
"
Setting up Bot...
Waiting for 5 seconds... Please select the Bloons TD 6 window during this time.
Traceback (most recent call last):
File "C:\Users\Documents\btd6farmer-main\main.py", line 34, in
bot.hero_select()
File "C:\Users\Documents\btd6farmer-main\Bot.py", line 261, in hero_select
self.log(f"Selecting {self.settings['hero']}")
KeyError: 'hero'
"

then exits python
any fixes?