Permission denied when execute docker-compose command in Ubuntu Linux

I installed docker engine and docker compose in Ubuntu Linux 20.04LTS.

ubuntu@ip-10-0-2-13:~/myapp/src$ docker-compose -v
docker-compose version 1.27.4, build 40524192

I also ran beloe command to make executable of docker-compose

ubuntu@ip-10-0-2-13:~/myapp/src$ sudo chmod +x /usr/local/bin/docker-compose 

But when I execute the docker-compose command, still get permission denied error.

ubuntu@ip-10-0-2-13:~/myapp/src$ docker-compose down
WARNING: The VERSION_TAG variable is not set. Defaulting to a blank string.
Traceback (most recent call last):
  File "urllib3/connectionpool.py", line 677, in urlopen
  File "urllib3/connectionpool.py", line 392, in _make_request
  File "http/client.py", line 1252, in request
  File "http/client.py", line 1298, in _send_request
  File "http/client.py", line 1247, in endheaders
  File "http/client.py", line 1026, in _send_output
  File "http/client.py", line 966, in send
  File "docker/transport/unixconn.py", line 43, in connect
PermissionError: [Errno 13] Permission denied

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "requests/adapters.py", line 449, in send
  File "urllib3/connectionpool.py", line 727, in urlopen
  File "urllib3/util/retry.py", line 403, in increment
  File "urllib3/packages/six.py", line 734, in reraise
  File "urllib3/connectionpool.py", line 677, in urlopen
  File "urllib3/connectionpool.py", line 392, in _make_request
  File "http/client.py", line 1252, in request
  File "http/client.py", line 1298, in _send_request
  File "http/client.py", line 1247, in endheaders
  File "http/client.py", line 1026, in _send_output
  File "http/client.py", line 966, in send
  File "docker/transport/unixconn.py", line 43, in connect
urllib3.exceptions.ProtocolError: ('Connection aborted.', PermissionError(13, 'Permission denied'))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "docker/api/client.py", line 205, in _retrieve_server_version
  File "docker/api/daemon.py", line 181, in version
  File "docker/utils/decorators.py", line 46, in inner
  File "docker/api/client.py", line 228, in _get
  File "requests/sessions.py", line 543, in get
  File "requests/sessions.py", line 530, in request
  File "requests/sessions.py", line 643, in send
  File "requests/adapters.py", line 498, in send
requests.exceptions.ConnectionError: ('Connection aborted.', PermissionError(13, 'Permission denied'))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "bin/docker-compose", line 3, in <module>
  File "compose/cli/main.py", line 67, in main
  File "compose/cli/main.py", line 123, in perform_command
  File "compose/cli/command.py", line 69, in project_from_options
  File "compose/cli/command.py", line 132, in get_project
  File "compose/cli/docker_client.py", line 43, in get_client
  File "compose/cli/docker_client.py", line 170, in docker_client
  File "docker/api/client.py", line 188, in __init__
  File "docker/api/client.py", line 213, in _retrieve_server_version
docker.errors.DockerException: Error while fetching server API version: ('Connection aborted.', PermissionError(13, 'Permission denied'))
[19602] Failed to execute script docker-compose

Can you help to solve this problem?