There is an issue where you need to re-establish the connection after deleting and recreating an app service. Make sure that you did this during your redeployment.
If it's not that I would look into your DevOps deployment. For DevOps questions, you'll want to post your question in the following forum, where the Azure DevOps team and DevOps community are actively answering questions:
https://developercommunity.visualstudio.com/spaces/21/index.html