Hello Odooers,

Getting this Trackback on Terminal. it's not popping out on Web interface.

Using: Odoo15CE on Cent.

2022-10-31 15:00:45,117 7624 INFO D1-INV werkzeug: 105.33.62.100 - - [31/Oct/2022 15:00:45] "POST /longpolling/im_status HTTP/1.1" 200 - 4 0.001 0.004
2022-10-31 15:00:47,913 7624 DEBUG D1-INV odoo.modules.registry: Multiprocess signaling check: [Registry - 28 -> 28] [Cache - 366 -> 366]
2022-10-31 15:00:47,914 7624 ERROR D1-INV odoo.http: Exception during JSON request handling.
Traceback (most recent call last):
  File "/opt/odoo/odoo15/odoo/addons/base/models/ir_http.py", line 237, in _dispatch
    result = request.dispatch()
  File "/opt/odoo/odoo15/odoo/http.py", line 687, in dispatch
    result = self._call_function(**self.params)
  File "/opt/odoo/odoo15/odoo/http.py", line 359, in _call_function
    return checked_call(self.db, *args, **kwargs)
  File "/opt/odoo/odoo15/odoo/service/model.py", line 94, in wrapper
    return f(dbname, *args, **kwargs)
  File "/opt/odoo/odoo15/odoo/http.py", line 348, in checked_call
    result = self.endpoint(*a, **kw)
  File "/opt/odoo/odoo15/odoo/http.py", line 916, in __call__
    return self.method(*args, **kw)
  File "/opt/odoo/odoo15/odoo/http.py", line 535, in response_wrap
    response = f(*args, **kw)
  File "/opt/odoo/odoo15/addons/bus/controllers/main.py", line 28, in poll
    raise Exception("bus.Bus unavailable")
Exception

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/opt/odoo/odoo15/odoo/http.py", line 643, in _handle_exception
    return super(JsonRequest, self)._handle_exception(exception)
  File "/opt/odoo/odoo15/odoo/http.py", line 301, in _handle_exception
    raise exception.with_traceback(None) from new_cause
Exception: bus.Bus unavailable

Why is this Error Happening, and how to fix that ?

Thank you.