Smart Contract -add contract error

I am trying smart contract on Vendia recently. I follow the document on the website but then come into some error. The error happens when I use the “addVendia_Contract” API , just as the following picture shows:

2023-01-07 145406

It seems like the error is come from the outputMutation field of the “addVendia_Contract” API. However, if I extract the content of outputMutation field and turn it into an individual GraphQL mutation, it works well. I am wondering that why is the error happens and what should I do to fix the error. Thanks!