LLM execution failed: EVENT_NOT_FOUND - No event exists with name: setVariableValue

I am facing error in the AI agend while reading the document.
LLM execution failed: EVENT_NOT_FOUND - No event exists with name: setVariableValue
Steps1:  When I am passing this document as in the TOOL in the AI agend than it is working fine.
Steps2:  When passing this document in the input than facing this issue.

Please just How can I pass document dynamically in the process model?

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