It fills, drains and goes through the cycles just fine, but doesn’t agitate or spin.
This appears to be a Whirlpool built direct drive unit, in which case the likely problem is a broken coupling. This is a relatively easy repair, particularly with a helper and the part is inexpensive.
Even better is this good video which will show you how to do the job.
YouTube - Washing Machine Drive Motor Coupler Replacement (part #285753A)
washer will spin but agitator not working.