Can't use extension with self-hosted gitlab - scope validity

Hello,

I just tried this morning to setup this extension with our self-hosted Gitlab.
So I've created my PAT, add it to GWE settings and set gitlab.instanceUrl: "https://git.domain.pro".
When I open the extension I got this :

400 - "{\"error\":\"scope does not have a valid value\"}"

I next set : gitlab.ignoreCertificateErrors: true, nothing change. I tried to turning off and on again : I always got a nope from the extension.

I don't know if it's because our self-hosted Gitlab is not updated to the last version (we made an update few months ago).
Hope this bug can be fix :)