Why does an error occur when declaring a Peewee model field?

Question

Python

I have some model
user = 'test_user'
password = 'qwerty'
db_name = 'diplodog'
from peewee import *
dbhandle = PostgresqlDatabase(
db_name, user=user,
password=password,
host='localhost',
port=5434
)
class Photo (Model):
id = IntegerField()
idpost = IntegerField()
idwall = IntegerField()
# where it is - in a post or comments
where = CharField()
# photo binary
photobytes = BigBitField()
# photobytes = CharField()
# link to which downloaded photo
url = CharField()
# if it is in the comments
idcomment = IntegerField()
class Meta:
database = dbhandle
when I run the code I get a
Traceback error (most recent call last):
File "", line 991, in _find_and_load
File "", line 975, in _find_and_load_unlocked
File "", line 671, in _load_unlocked
File "", line 783, in exec_module
File "", line 219, in _call_with_frames_removed
File "/home/fuckinggirl/PycharmProjects/untitled5/entity/photo.py", line 4, in
class Photo (Model):
File "/home/fuckinggirl/PycharmProjects/untitled5/venv/lib/python3.8/site-packages/peewee.py", line 6044,in __new__
cls._meta.add_field(name, field)
File "/home/fuckinggirl/PycharmProjects/untitled5/venv/lib/python3.8/site-packages/peewee.py", line 5833, in add_field
field.bind(self.model, field_name, set_attribute)
File "/home/ fuckinggirl/PycharmProjects/untitled5/venv/lib/python3.8/site-packages/peewee.py", line 4617, in bind
self._db_hook(model._meta.database)
File "/home/fuckinggirl/PycharmProjects/untitled5/venv /lib/python3.8/site-packages/peewee.py", line 4609, in _db_hook
self._constructor = database.get_binary_type()
File "/home/fuckinggirl/PycharmProjects/untitled5/venv/lib/python3.8/site -packages/peewee.py", line 3773, in get_binary_type
return psycopg2.Binary
AttributeError: 'NoneType' object has no attribute 'Binary'
Process finished with exit code 1
If I change the line
photobytes = BigBitField(),
for example, to
photobytes = CharField(),
then everything works fine. What could be wrong?