Error code 37 is drain pump fault.

Service manual fault codes are in link below.

error 37 is on page 29.

Likely that drain pump is physically blocked by something it has swallowed - a nail, coin, bra wire, chunk of lint, etc.

You can access the pump from underneath.

I'm happy to give more detail if you need it.

It's common enough and often fixed just by cleaning it out.

It could be a dead pump, too.