TypeError: Cannot read property 'items' of undefined

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Good evening,
@tony-brunsman Thank you for your response! I’ve been playing with the code all day and think I may have found a solution but am now receiving this error code:

Wix code SDK error: The data parameter that is passed to the data method cannot be set to the value . It must be of type array.

Here is my current code:

import {getVINInfo} from 'backend/VINModule';
import {wixData} from 'wix-data';


$w.onReady(function () {
 //TO DO: Write Your Page Related Code Here:
        }); 

export function button1_click(event, $w) {
 //Add your code for this event here:
    getVINInfo($w("#vininput").value)
        .then(VINInfo => {
            console.log(VINInfo)
                      $w("#results").text = VINInfo.Results[8].Value + "  " + VINInfo.Results[5].Value + "  " + VINInfo.Results[7].Value;
     $w("#dataset1").setFilter(wixData.filter()
                      .contains("year", VINInfo.Results[8].Value)
                      .contains("make" , VINInfo.Results[5].Value)
                      .contains("model", VINInfo.Results[7].Value))
                          .then((results) =>{
                          console.log("Dataset is now filtered");
 let results2 = "battery"
                          $w("#repeater1").data = results2.data;
                          }) 
                        .catch((err) => {
                          console.log(err);
        });

});
}

Any thoughts on where I went wrong with the code?
BTW, battery is the name of the referenced product field from my database.