You or your ADO admin can check under Project Settings > Repository to make sure you have access to the repo on the ADO side. You need read permissions at a bare minimum to see the code, but contributor would also let you make changes. To be clear- I'm talking about the Contributor role on the ADO repository, not the Contributor role within Azure Synapse.
Please let me know if this allows you to resolve your issue.
Thank you for your time