I deployed azure blockchain workbench manually by adding active directory then finalized things After deployment of json and solidity file and creating a contract there is an error for taking contract actions. that error was then identified by app insight and it was regarding gas limit etc.
Error while estimating gas. Exception gas required exceeds allowance or always failing transaction.
[Note: As we migrate from MSDN, this question has been posted by an Azure Cloud Engineer as a frequently asked question] Source: MSDN