Microsoft Appcenter auth problems

I`m using microsoft appcenter with gitlab connection for building mobile apps. Every day connection with appcenter and gitlab lost. I reconnect and after that all builds failed.

##[command]git config remote.origin.lfspushurl https://:@gitlab.com/COMPANY_NAME/REPO_NAME.git/info/lfs ##[command]git fetch --force --tags --prune --prune-tags --progress --no-recurse-submodules origin remote: HTTP Basic: Access denied fatal: Authentication failed for 'https://gitlab.com/COMPANY_NAME/REPO_NAME.git/' ##[warning]Git fetch failed with exit code 128, back off 2.327 seconds before retry fatal: Authentication failed for 'https://gitlab.com/COMPANY_NAME/REPO_NAME.git/' ##[error]Git fetch failed with exit code: 128

If I'll remove connection and add it again all builds are successful then. But reconnecting remove all configs (for all branches) and I should add it again. Week ago I didn`t have this problem.

Thanks.