E06 is a time out draining.
First, check the drain hose where it connects to the house drains.
Take the hose off and check the hose and connection for a blockage.
If ok, put a dish in front of the filter and slacken the filter to drain the water out.
(If there's a small hose by the filter, use this to drain the water).
Tighten the filter when you need to empty the dish.
Once empty, take the filter out and clean out any debris in there.
Ensure the pump impellor can turn.
Refit the filter and try the machine again.
Hope this helps
Let me know how it goes or if you need more help