I have an older Bosch

Question

I have an older Bosch dishwasher I just hooked up in my condo. WHen a cycle is done there is no water is located at the bottom of the inside of the dishwasher, yet 2 days later water will drip on the floor (with the dishwasher door closed) and I'll open the dishwasher door and therewill be 2" of water at the bottom. The flexible water discharge hole located in the sink base is located at the top of the base cabinet, and the hose runs completly 100% downward from that hole to the garbage disposal. What have I done wrong?