The GitLab CI configuration could not be updated

Describe your question in as much detail as possible:
Use the CI/CD Editor. Attempting to “Commit Changes” and I receive an error.

• What are you seeing, and how does that differ from what you expect to see?
  The GitLab CI configuration could not be updated.
  Response not successful: Received status code 500

• *What version are you on?

  • Are you using self-managed or GitLab.com?
    self-managed

  • GitLab (Hint: /help):
    Docker gitlab/gitlab-ee:14.8.2-ee.0

  • Runner (Hint: /admin/runners):
    Docker gitlab/gitlab-runner:latest

• Add the CI configuration from .gitlab-ci.yml and other configuration if relevant (e.g. docker-compose.yml)

variables:
  DUMMY: "Just testing"

default:
  image: chocolatey/choco:latest-windows

  before_script:
    - apt -y update

build:
  stage: build
  script:
    - docker run --rm -it chocolatey/choco choco --version

• What troubleshooting steps have you already taken? Can you link to any docs or other resources so we know where you have been?
  • GitLab CI/CD Examples | GitLab
  • Keyword reference for the `.gitlab-ci.yml` file | GitLab
  • .gitlab-ci.yml · master · Gabriel Le Breton / gitlab-ci-example-docker · GitLab

Thanks for taking the time to be thorough in your request, it really helps!