Washer Troubles

My Washer stopped working towards the end of the cycle. I read enough good answers here to remove bottom cover and manually unlock the door to remove clothes. I also found the drain filter and cleaned it out. It was full of "stuff". Put everything back together but now nothing seems to happen, I can select a wash and when I push "start" door locks and nothing happens. No error codes come up. And I have to manually unlock the door. The "add garmet" light flashes and everything seems to freeze up. I have to unplug to reset but same thing happens everytime. Any ideas please.