I get error when I start the bot

[finalfanx]

C:\Users\Admin\Desktop\bombly>python dfly-loader-wsr.py
Traceback (most recent call last):
File "dfly-loader-wsr.py", line 23, in
from dragonfly.engines.backend_sapi5.engine import Sapi5InProcEngine
File "C:\Python27\lib\site-packages\dragonfly-0.6.6b1-py2.7.egg\dragonfly_init_.py",
line 33, in
from .grammar.rule_mapping import MappingRule
File "C:\Python27\lib\site-packages\dragonfly-0.6.6b1-py2.7.egg\dragonfly\grammar\rule_
mapping.py", line 81, in
from ..actions.actions import ActionBase
File "C:\Python27\lib\site-packages\dragonfly-0.6.6b1-py2.7.egg\dragonfly\actions_ini
t_.py", line 23, in
from .action_key import Key
File "C:\Python27\lib\site-packages\dragonfly-0.6.6b1-py2.7.egg\dragonfly\actions\actio
n_key.py", line 181, in
from .typeables import typeables
File "C:\Python27\lib\site-packages\dragonfly-0.6.6b1-py2.7.egg\dragonfly\actions\typea
bles.py", line 35, in
"a": keyboard.get_typeable(char='a'),
File "C:\Python27\lib\site-packages\dragonfly-0.6.6b1-py2.7.egg\dragonfly\actions\keybo
ard.py", line 144, in get_typeable
code, modifiers = cls.get_keycode_and_modifiers(char)
File "C:\Python27\lib\site-packages\dragonfly-0.6.6b1-py2.7.egg\dragonfly\actions\keybo
ard.py", line 132, in get_keycode_and_modifiers
raise ValueError("Unknown char: %r" % char)
ValueError: Unknown char: 'a'