Hi Kay,
The link you sent (v3.silex.me/?id=...) is the Silex editor URL, which only I can open if I'm logged into your account. I need access to the GitLab project itself so I can look at the repo and the published files
Invite me as a member on GitLab. On your project page: Settings > Members > Invite members, enter "lexoyo" as the username, and pick the Reporter role (read-only is enough). Then paste the gitlab.com URL of your project here (something like https://gitlab.com/your-username/your-project) once it's done.
I'll add a FAQ entry about this for future cases