LoadComplete shows this message when you verify a scenario or run a load test. Before LoadComplete starts scenario verification or a test run, it checks whether the scenario (or scenarios) can access all the needed data. If a scenario uses an Excel or Database variable which refers to a non-existing data column, LoadComplete shows this message to warn you about the problem.
Most likely, the needed column was renamed or deleted from the database or from the Excel sheet specified by variable attributes.
Open the Excel file or database for editing and make sure the column used by the variable exists:
Check the column name. It must coincide with the name specified by the variable attributes. If the column has another name, you can either rename it in the Excel sheet or database or re-initialize the variable and update the scenario to use the new column name.
If the column was deleted, re-initialize the variable and update the scenario to use the existing columns.