When the error code comes up, has the machine fully drained or not?
OK, you need to fully empty the water out.
Then, put it on spin only.
Does it complete?
OK, the next check is to disconnect the drain hose where it connects to the house drains.
Check both for blockages/build up of scale.
Take out the filter in the machine, check that for debris and scale.
If all ok, put the filter back in, aim the hose into a bucket.
Put the machine on rinse.
Once it's got some water in, cancel and put the machine to spin only.
Holding the hose 3/4 the height of the machine and aimed into a bucket, does it pump the water out with good pressure and force?
Does it empty quickly?
Yes, you should have been cleaning it out regularly since you bought the machine.
Bottom front, on the left, there's a panel that opens.
You'll find a draining tube and a filter cap there.
Click here for the user manual
It may be of some help.
Hope this helped