Read the Docs build information Build id: 24171 Project: howtomiddlelayer Version: latest Commit: None Date: 2022-08-18T14:53:51.124885Z State: finished Success: False [rtd-command-info] start-time: 2022-08-18T14:53:54.015198Z, end-time: 2022-08-18T14:53:54.166583Z, duration: 0, exit-code: 128 git clone --no-single-branch --depth 50 http://git.xfel.eu/gitlab/karaboDevices/HowToMiddlelayer.git . Cloning into '.'... fatal: unable to access 'https://degon:cmtivaKFeSEdTmS6tKJ6@git.xfel.eu/gitlab/karaboDevices/HowToMiddlelayer.git/': server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none