Calling a service class from a controller results in On object reference is required for the non-static field, method error

Question

I have a controller action that performs a particular task. I am trying to execute another method in a different class. I happen to be trying to use Hangfire, but that is not relevant to the issue I don't think.

The code won't compile because the method call UpdatePlayerStats.Process(originalresult.Id); errors with On object reference is required for the non-static field, method, or property call ...

How can I make this work?

Controller

[HttpPost]
public async Task<IActionResult> CommitScorecard(ScorecardViewModel vm)
{
    //Other code

    UpdatePlayerStats.Process(originalresult.Id);

    //With hangfire
    var jobId = _backgroundJobs.Enqueue(() => UpdatePlayerStats.Process(originalresult.Id));
    
    //Other code
}

Service

public class UpdatePlayerStats
{
    private readonly ApplicationDbContext _context;

    public UpdatePlayerStats(ApplicationDbContext context)
    {
        _context = context;
    }

    public async Task<bool> Process(long resultid)
    {
        var result = _context.Results.FirstOrDefault(i => i.Id == resultid);
        return true;
    }     
}