Google sheet not being updated by setValues

I am writing a large file uploader for Google Drive and when I tried to implement writing some data to a Google Sheet I ran into a brick wall, for whatever reason I could not get it to ever write or even give a error as to why. I decided to start a whole new project and made it as simple as possible so all it does is grab similar data to what I will be grabbing and write it, but still no luck.
I am not super familiar with the Google Apps processes or the syntax of using them so I am probably just doing something really stupid.

Old code removed

I have tried removing some variables like file and email in case they needed to be written differently and changing how the form is passed to the function but the best I ever got was a "Cannot read Null" error when I passed it a form that didn't exist.

UPDATE:

Once I had it working I tried to slip it into the main script I am using (Which is basically a copy of this but now its not working, I am realizing this may be over my head unfortunately cause no matter what I try its doing the same, runs and uploads the file fine, but does not update the form.
Google Scripts:

function doGet(e) {
return HtmlService.createHtmlOutputFromFile('Form.html');
}
function getAuth() {
return { accessToken: ScriptApp.getOAuthToken(), folderId: "1sFxs3Ga4xWFCgIXRUnQzCAAp_iRX-wdj" };
}
function setDescription({fileId, description}) {
DriveApp.getFileById(fileId).setDescription(description);
}
function updateform(formObject) {
try {
var ss = SpreadsheetApp.openById('1iCTNZ6RERnes1Y-ocfXzPN3jviwdIEK_dBKQ4LIu5KI');
var sheet = ss.getSheets()[0];
sheet.appendRow([myFile.getName(), myFile.getUrl(), formObject.myName], "If This Shows Up It Worked");
} catch (error) {
return error.toString();
}
}

HTML:

<form id="myForm" align="center" onsubmit="updatesheet(This)">
  <input type="text" name="myName" placeholder="Your name..">
  <input type="file" name="myFile">
  <input type="submit" value="Submit Form" onclick="run(); return false;">                 
</form>
<div id="progress"></div>
<div id="output"></div>
<script src="https://cdn.jsdelivr.net/gh/tanaikech/ResumableUploadForGoogleDrive_js@master/resumableupload_js.min.js"></script>
<script>
function onSuccess() {
  var div = document.getElementById('output');
  div.innerHTML = '<a href="Spreadsheet Updated</a>';
}

function onFailure(error) {
  alert(error.message);
}
function updatesheet(form) {
  google.script.run.withSuccessHandler(onSuccess).withFailureHandler(onFailure).updateform(form); 
}

function run() {       
  google.script.run.withSuccessHandler(accessToken => ResumableUploadForGoogleDrive(accessToken)).getAuth();
}

function ResumableUploadForGoogleDrive({accessToken, folderId}) {
  const myName = document.getElementsByName("myName")[0].value;
  const file = document.getElementsByName("myFile")[0].files[0];
  if (!file) return;
  let fr = new FileReader();
  fr.fileName = file.name;
  fr.fileSize = file.size;
  fr.fileType = file.type;
  fr.readAsArrayBuffer(file);
  fr.onload = e => {
    var id = "p";
    var div = document.createElement("div");
    div.id = id;
    document.getElementById("progress").appendChild(div);
    document.getElementById(id).innerHTML = "Initializing.";
    const f = e.target;
    const resource = { fileName: f.fileName, fileSize: f.fileSize, fileType: f.fileType, fileBuffer: f.result, accessToken, folderId };
    const ru = new ResumableUploadToGoogleDrive();
    ru.Do(resource, function (res, err) {
      if (err) {
        console.log(err);
        return;
      }
      console.log(res);
      let msg = "";
      if (res.status == "Uploading") {
        msg = Math.round((res.progressNumber.current / res.progressNumber.end) * 100) + "% (" + f.fileName + ")";
      } else {
        msg = res.status + " (" + f.fileName + ")";
      }
      if (res.status == "Done") {
        google.script.run.withSuccessHandler(_ => {
          document.getElementById('myForm').style.display = 'none';
          document.getElementById('p').style.display = 'none';
          document.getElementById('output').innerHTML = "All information submitted, thank you!";
        }).setDescription({fileId: res.result.id, description: "Uploaded by " + myName});
      }
      document.getElementById(id).innerText = msg;
    });
  }
}
</script>

Several things about your updated code.

First it should be this not This.

Second you have onsubmit and onclick events for the same form. I believe the onclick is suppressing the submit event. Remove onclick entirely.

Third you use a try catch block in updateform so withFailureHandler will never execute. Instead the error message or null is returned to the success handler onSuccess(error).

Forth, I use a paragraph <p> instead of an anchor <a>. The href is malformed in your anchor.

Last, run() can be executed in updatesheet(form). Note run() is asynchronous which means it doesn't wait for google.script.run to finish before executing.

I can simply tell you that all the alerts are displayed and the execution log shows updateform did execute. So this code works for me.

<!DOCTYPE html>
<html>
<head>
<base target="_top">
</head>
<body>
<form id="myForm" align="center" onsubmit="updatesheet(this)">
<input type="text" name="myName" placeholder="Your name..">
<input type="text" name="myFile">
<input type="submit" value="Submit Form">                 
</form>
<div id="progress"></div>
<div id="output"></div>
<script>
function onSuccess(error) {
if( error ) {
alert(err);
return;
}
alert("onSuccess");
var div = document.getElementById('output');
div.innerHTML = "<p>Spreadsheet Updated</p>";
}
function run() {
alert("run");   
}
function updatesheet(form) {
alert("updatesheet");
google.script.run.withSuccessHandler(onSuccess).updateform(form);
run();
}
</script>
</body>
</html>