Shell executor unable to access repository - URL using bad/illegal format or missing URL

Hi all,

all pipelines are broken that are running with shell executor without changing anything:

Running with gitlab-runner 14.8.2 (c6e7e194)
  on staging-shell HXHXiXyX
Preparing the "shell" executor

Using Shell executor...
Preparing environment

Running on 1001474-476...
Getting source from Git repository

Fetching changes with git depth set to 50...
Reinitialized existing Git repository in /home/gitlab-runner/builds/HNHdiayS/0/e-mission-de/e-platform/progresses/.git/
fatal: unable to access 'https://gitlab-ci-token:[MASKED]': URL using bad/illegal format or missing URL
Cleaning up project directory and file based variables

ERROR: Job failed: exit status 1

Looks like the repository cannot be reached from the pipeline. In my opinion the URL is correct.

I am using and my own gitlab-runner with the version 14.8.2 running on a Ubuntu server.

Unfortunately I am not able to find anything related to this in the docs.

Any ideas?

Thanks for you help!