Not able to connect to the local test API server

Error handling request
Traceback (most recent call last):
  File "/usr/local/lib/python3.10/dist-packages/aiohttp/web_protocol.py", line 433, in _handle_request
    resp = await request_handler(request)
  File "/usr/local/lib/python3.10/dist-packages/aiohttp/web_app.py", line 473, in _handle
    match_info = await self._router.resolve(request)
  File "/usr/local/lib/python3.10/dist-packages/aiohttp/web_urldispatcher.py", line 1010, in resolve
    match_dict, allowed = await resource.resolve(request)
  File "/usr/local/lib/python3.10/dist-packages/aiohttp/web_urldispatcher.py", line 755, in resolve
    not request.url.raw_path.startswith(self._prefix2)
  File "aiohttp/_helpers.pyx", line 26, in aiohttp._helpers.reify.__get__
  File "/usr/local/lib/python3.10/dist-packages/aiohttp/web_request.py", line 437, in url
    url = URL.build(scheme=self.scheme, host=self.host)
  File "/usr/local/lib/python3.10/dist-packages/yarl/_url.py", line 388, in build
    _host = _encode_host(host, validate_host=True)
  File "/usr/local/lib/python3.10/dist-packages/yarl/_url.py", line 1482, in _encode_host
    raise ValueError(
ValueError: Host '172.18.0.1:8188' cannot contain ':' (at position 10)

Error handling request
Traceback (most recent call last):
  File "/usr/local/lib/python3.10/dist-packages/aiohttp/web_protocol.py", line 433, in _handle_request
    resp = await request_handler(request)
  File "/usr/local/lib/python3.10/dist-packages/aiohttp/web_app.py", line 473, in _handle
    match_info = await self._router.resolve(request)
  File "/usr/local/lib/python3.10/dist-packages/aiohttp/web_urldispatcher.py", line 1010, in resolve
    match_dict, allowed = await resource.resolve(request)
  File "/usr/local/lib/python3.10/dist-packages/aiohttp/web_urldispatcher.py", line 755, in resolve
    not request.url.raw_path.startswith(self._prefix2)
  File "aiohttp/_helpers.pyx", line 26, in aiohttp._helpers.reify.__get__
  File "/usr/local/lib/python3.10/dist-packages/aiohttp/web_request.py", line 437, in url
    url = URL.build(scheme=self.scheme, host=self.host)
  File "/usr/local/lib/python3.10/dist-packages/yarl/_url.py", line 388, in build
    _host = _encode_host(host, validate_host=True)
  File "/usr/local/lib/python3.10/dist-packages/yarl/_url.py", line 1482, in _encode_host
    raise ValueError(
ValueError: Host '172.18.0.1:8188' cannot contain ':' (at position 10)