Plugin looks like not working

[Cosby86]

Hello all i'm trying to push sonar results on gitlab. I placed the plugin (3.0.1 version) on extension\plugin folder of my sonar but, first of all, i don't see any gitlab menu in configuration tab (i obviously restarted sonar). trying to run the analysis with the following config:

sonar.gitlab.api_version="v4"
sonar.gitlab.commit_sha="HASH"
sonar.gitlab.ref_name="develop"
sonar.gitlab.project_id="336"
sonar.gitlab.url="URL"
sonar.gitlab.user_token="TOKEN"
sonar.gitlab.ignore_certificate=true
sonar.gitlab.comment_no_issue=true
sonar.gitlab.ping_user=true
sonar.gitlab.unique_issue_per_inline=true
sonar.gitlab.all_issues=true
sonar.gitlab.merge_request_discussion=true
sonar.gitlab.ci_merge_request_iid=9

I don't see any comment on my MR. I don't find anything on sonar logs as well. please help me