Workfusion SPA plugin issue: 400 null error

Hi Team,

I am getting below error while performing a task in excel, please find below code and error.

Code

<?xml version="1.0" encoding="UTF-8"?>
<robotics-flow>
    <recorder close-on-completion="true" close-all-windows="false" start-in-private="false" recorder-script-uuid="c2addee3-3c50-4361-bbd2-a2a9d449e04d"/>
</robotics-flow>

<export include-original-data="true">
            <single-column name="column_1" value="${column_1}"></single-column>
            <single-column name="excel_path" value="${excel_path}"></single-column>
            <single-column name="table" value="${table}"></single-column>
            <single-column name="column_3" value="${column_3}"></single-column>
            <single-column name="column_2" value="${column_2}"></single-column>
</export>

Error

Step name ‘Migrate_test’ has failed. Reason: ‘[urn:uuid:3718D7E4FCED2D0344165425886701664] robotics-flow executePlugin exception: org.springframework.web.client.HttpClientErrorException: 400 null’