Vscode and access token error


I have a problem on using vscode with gitlab workflow extension.
We use a “private” Gitlab in my work and i have created a access token.
But when i try to add an account on my vscode extension, i receive this message
“Request failed: Can’t add GitLab account for https://URL_of_my_GitLab. Check your instance URL and network connection.”
We are behind a proxy and it is configured on vscode.
Thanks for your help

I found a solution about the extension : there is a problem with my vscode version :

2024-01-15 13:22:30.904 [error] Activating extension GitLab.gitlab-workflow failed due to an error:
2024-01-15 13:22:30.904 [error] Error: The language client requires VS Code version ^1.82.0 but received version 1.75.0

But i still have the problem to connect to the gitlab.

2024-01-15 15:55:26.359 [info] Missing or invalid credentials.
Skip silent fetch commands
Missing or invalid credentials.
Skip silent fetch commands
remote: HTTP Basic: Access denied. The provided password or token is incorrect or your account has 2FA enabled and you must use a personal access token instead of a password. See https://xxxxxxx/help/topics/git/troubleshooting_git#error-on-git-fetch-http-basic-access-denied