Read the Docs build information Build id: 24225 Project: beckhoff Version: latest Commit: None Date: 2022-08-25T12:49:26.507385Z State: finished Success: False [rtd-command-info] start-time: 2022-08-25T12:49:57.972566Z, end-time: 2022-08-25T12:49:58.113045Z, duration: 0, exit-code: 128 git clone --no-single-branch --depth 50 http://git.xfel.eu/gitlab/karaboDevices/Beckhoff.git . Cloning into '.'... fatal: unable to access 'https://parenti:SDR8bzzbKseiCyXdGx4E@git.xfel.eu/gitlab/karaboDevices/Beckhoff.git/': server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none