How to remove the washer filter bag
It's easier to have a plastic filter bag on the side of the cylinder, and you press down the card with a bit of force, and you can get it out.
Remove the water from the washing machine and use a screwdriver to press down the square hole above the filter door. Hold the plastic pipe and pull out the sewage flow, although it is ready for a container of water, which is then inserted into the sewage stream. Restore the sewage pipe. Go counterclockwise to remove the filter bag. Rinse with water. Put it back in place and rotate clockwise.
The non-specialist mistakenly dismounted the machine, It's best to find a knowledgeable or professional person, or sell it later to help!