Flashing lights beeping

The dishwasher has too much water in it, this is a safety feature.

Underneath is a tray at the bottom, you need to empty this before it will start again. I've had this problem many times. My dishwasher had tiny holes in the bottom tray where the basket sits, went rusty due to not using it very often (holiday home). dried it out, applied silicon sealant to the edge where the metal sits, let it dry and the problem was solved.

I have used a sucking water vacuum to remove water, or tipped it forward. Hope this helps for maybe next time. The dishwasher has too much water in it, this is a safety feature.
Underneath is a tray at the bottom, you need to empty this before it will start again. I've had this problem many times. My dishwasher had tiny holes in the bottom tray where the basket sits, went rusty due to not using it very often (holiday home). dried it out, applied silicon sealant to the edge where the metal sits, let it dry and the problem was solved.
I have used a sucking water vacuum to remove water, or tipped it forward. Hope this helps for maybe next time.