This job is stuck, because you don’t have any active runners that can run this job.
If you get this error in your gitlab ci/cd pipeline make sure that your runner has all the tags assigned to it that the pipeline needs.
So if a pipeline needs multiple tags, the runner has to have all the tags assigned to it in the runner configuration or you can remove the tags from the gitlab-ci.yml file.
Example: Your pipeline has the tags ubuntu, ubuntu-gpu, then you need a runner that has all those tags assigned to them, else the pipeline will fail.