Sorry for the delay in replying. As you can see from the Search tab error message, it's just blowing up on the Excel API's PivotCache.MakeConnection() function. This tells me that there is some reason the PivotTable can't connect.
Can you answer the following questions...
What version of my add-in are you using? Is the connection to an Analysis Services cube? What version? Is there anything different about the connection? Can you capture the connection string? Are you using the credentials of the user logged into the laptop, or are you specifying credentials for that connection? When you refresh your PivotTable, it succeeds? The PivotTable has some fields on rows, columns, or values?