'NoneType' object has no attribute '_base_manager' after adding the plugin to netbox

1. Download the release in: https://github.com/ffddorf/netbox-vault-secrets/releases
2. Put that tarball downloaded in the root folder of netbox-docker
3. I installed the release in Dockerfile-Plugin as below:
```
FROM netboxcommunity/netbox:latest

COPY ./netbox_vault_secrets-0.0.1.tar.gz /
RUN /opt/netbox/venv/bin/pip install --no-warn-script-location /netbox_vault_secrets-0.0.1.tar.gz
COPY configuration/configuration.py /etc/netbox/config/configuration.py
RUN SECRET_KEY="dummy" /opt/netbox/venv/bin/python /opt/netbox/netbox/manage.py collectstatic --no-input
```

4. Then I add the plugin to the Netbox configuration
5. Try building and start the netbox

I got below error:
```
Server Error
There was a problem with your request. Please contact an administrator.

The complete exception is provided below:

'NoneType' object has no attribute '_base_manager'

Python version: 3.10.6
NetBox version: 3.4.7
```