HACS errors

hallo , i installed and configured HACS following all the steps but it not appear under the “integration list”
if i add these lines to configurator.yaml
hacs:
token: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
appdaemon: true
sidepanel_title: true
python_script: true
theme: true
it gives me back this errors in the log :
Error processing webhook d90ad88bc601d9fa947cb596e7ec95be0105c11246cf97559399ca4b76308fc3
Traceback (most recent call last):
File “/usr/src/homeassistant/homeassistant/components/webhook/init.py”, line 77, in async_handle_webhook
response = await webhook[“handler”](hass, webhook_id, request)
File “/usr/src/homeassistant/homeassistant/components/mobile_app/webhook.py”, line 272, in handle_webhook
await hass.data[DOMAIN][DATA_STORE].async_save(safe)
File “/usr/src/homeassistant/homeassistant/helpers/storage.py”, line 137, in async_save
await self._async_handle_write_data()
File “/usr/src/homeassistant/homeassistant/helpers/storage.py”, line 195, in _async_handle_write_data
async with self._write_lock:
File “/usr/local/lib/python3.7/asyncio/locks.py”, line 92, in aenter
await self.acquire()
File “/usr/local/lib/python3.7/asyncio/locks.py”, line 192, in acquire
await fut
concurrent.futures._base.CancelledError

can someone help me ?