Push to gitlab.com through company proxy - error: RPC failed; HTTP 403 curl 22 The requested URL returned error: 403

How to Use GitLab
1

Hi everyone,

I’m currently using gitlab through my company firewall (using HTTPS of course), some repo work well, but some repo throw error message error: RPC failed; HTTP 403 curl 22 The requested URL returned error: 403

Do you have any idea about why this problem happen? What can I do for further troubleshoot this problem?

here is console log

ME@MYPC MINGW64 /d/git/working/my-project (master)
$ git push -u gitlab master
Enumerating objects: 4734, done.
Counting objects: 100% (4734/4734), done.
Delta compression using up to 4 threads
Compressing objects: 100% (2565/2565), done.
Writing objects: 100% (4734/4734), 122.85 MiB | 34.32 MiB/s, done.
Total 4734 (delta 3085), reused 3485 (delta 2057), pack-reused 0
error: RPC failed; HTTP 403 curl 22 The requested URL returned error: 403
fatal: the remote end hung up unexpectedly
fatal: the remote end hung up unexpectedly
Everything up-to-date

and here is my /.git/config content

[core]
	repositoryformatversion = 0
	filemode = false
	bare = false
	logallrefupdates = true
	symlinks = false
	ignorecase = true
[remote "gitlab"]
	url = https://gitlab.com/my-group/my-project.git
	fetch = +refs/heads/*:refs/remotes/gitlab/*
[http]
	proxy = http://my-account:my-password@my-company-proxy-server:8080
	sslVerify = false
[https]
	proxy = http://my-account:my-password@my-company-proxy-server:8080