At the beginning of the senhasegura update, there is a validation of the connectivity between the senhasegura instance and the senhasegura update mirror (repository).
When this validation fails, you will receive the error message ERROR - Connection to repository service not available. This error occurs when the senhasegura instance does not have connectivity to the senhasegura mirror.
When this error occurs, verify that there is connectivity between the senhasegura instance and the senhasegura mirror (repository) and rerun all steps of the senhasegura update process.