Failure to pull container-socket-proxy

[21plots]

I recently decided to clean and fully reinstall this playbook, but whenever I try to install, it seems to fail to find the container-socket-proxy, attempts to 10 times, and then fails the full install.

TASK [galaxy/container_socket_proxy : Ensure container-socket-proxy container image is pulled via community.docker.docker_image] ***
FAILED - RETRYING: [placeholder.mash.com]: Ensure container-socket-proxy container image is pulled via community.docker.docker_image (10 retries left).
FAILED - RETRYING: [placeholder.mash.com]: Ensure container-socket-proxy container image is pulled via community.docker.docker_image (9 retries left).
FAILED - RETRYING: [placeholder.mash.com]: Ensure container-socket-proxy container image is pulled via community.docker.docker_image (8 retries left).
FAILED - RETRYING: [placeholder.mash.com]: Ensure container-socket-proxy container image is pulled via community.docker.docker_image (7 retries left).
FAILED - RETRYING: [placeholder.mash.com]: Ensure container-socket-proxy container image is pulled via community.docker.docker_image (6 retries left).
FAILED - RETRYING: [placeholder.mash.com]: Ensure container-socket-proxy container image is pulled via community.docker.docker_image (5 retries left).
FAILED - RETRYING: [placeholder.mash.com]: Ensure container-socket-proxy container image is pulled via community.docker.docker_image (4 retries left).
FAILED - RETRYING: [placeholder.mash.com]: Ensure container-socket-proxy container image is pulled via community.docker.docker_image (3 retries left).
FAILED - RETRYING: [placeholder.mash.com]: Ensure container-socket-proxy container image is pulled via community.docker.docker_image (2 retries left).
FAILED - RETRYING: [placeholder.mash.com]: Ensure container-socket-proxy container image is pulled via community.docker.docker_image (1 retries left).
fatal: [placeholder.mash.com]: FAILED! => {"attempts": 10, "changed": false, "msg": "Error connecting: Error while fetching server API version: Not supported URL scheme http+docker"}

Obviously placeholder.mash.com isn't my actual domain.