✅ Nested views failing

<div class="form-group">
<input type="submit" id="SaveEdit" value="Save" class="btn btn-primary" />
</div>

<div class="dash-content col py-3" id="contentArea">

</div>

$('#SaveEdit').click(function() {
preventDefault(); // Prevent the default action of the link
var submissionId = $(this).attr('value'); // Get the ID of the submission
$.ajax({
url: '/Submission/Edit/' + submissionId,
type: 'GET',
success: function(result) {
$('#contentArea').html(result);
}
});
});

[HttpPost]
[ValidateAntiForgeryToken]
[Authorize(Roles = "Admin")]
public async Task<IActionResult> Edit(int id, Event @event)
{
if (id != @event.EventId)
{
return NotFound();
}
ModelState.Remove("");
if (ModelState.IsValid)
{
try
{
var @submission = await _context.Event.FirstOrDefaultAsync(m => m.EventId == id);
@submission.EventEditedDate = @event.EventEditedDate;
_context.Update(@submission);
await _context.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
if (!EventExists(@event.EventId))
{
return NotFound();
}
else
{
throw;
}
}
return RedirectToAction("Details", new { id = id });
}
return RedirectToAction("Details", new { id = id });
}

[Authorize(Roles = "Admin")]
public async Task<IActionResult> Edit(int? id)
{
if (id == null || _context.Event == null)
{
return NotFound();
}
var @event = await _context.Event.FindAsync(id);
if (@event == null)
{
return NotFound();
}
return View(@event);
}