SyntaxError: Unexpected end of JSON input when running Multimodal RAG on the latest repository

When running Multimodal RAG on the latest version of the repository, the following error occurred:
`SyntaxError: Failed to execute 'json' on 'Response': Unexpected end of JSON input`
Please note that all related repositories are updated to their latest versions. However, when I downgraded this repository to the commit `fb48a724798f32091d16e1507b16ebd115c92d35` (Commits on Feb 10, 2025), I confirmed that it works correctly without any issues.

Could you please look into this? Thank you in advance for your support.

Start by reproducing the Multimodal RAG run on the current repository and comparing it with commit fb48a724798f32091d16e1507b16ebd115c92d35, which reportedly works. Trace the response that produces the JSON parsing error; done means identifying and fixing the regression so the current repository runs without the Unexpected end of JSON input error.

Written by the indexing model from the issue text.