Why is my washer drain overflowing and how can I fix it?

Your washer drain may be overflowing due to a clog in the drain pipe or a malfunctioning drain pump. To fix it, try clearing any blockages in the drain pipe using a plumber's snake or a mixture of baking soda and vinegar. If the issue persists, you may need to replace the drain pump. It is recommended to consult a professional plumber for further assistance.