Couple things you can check that should solve the problem.
First open the lid and look at the agitator, in the enter you should be able to remove the center
piece that is on top, then remove the plastic
piece that is there
until you get to a nut.
Verify the nut is not loose, if it is then tighten it down.
Second ,Your model may have a balance ring that may have came loose or is broken.
Remove the top by unscrewing the 2 screws from the top electrical area of the washer, then remove the 2 clips with a flat head screwdriver.
Unplug the lid switch, then remove the entire cover off of the washer by pulling it back towards you.
Pop the plastic
piece off the top of the drum and under that you should find the balance ring (If yours has one) if it does then make sure its not loose or broken.
Good Luck! I’m happy to help further over the phone at
https://www.6ya.com/expert/michael_341f3f9dee622e54