Cat pump - oil cap broke

The red oil cap on my cat pump busted today , luckily at the end of my second job. Right before the cap broke, my pressure washer hose busted. So now the pump is not working. Anybody encounter a problem like this? I’m taking it in tomorrow. Also, after taking a closer look at my oil fill indicator I noticed i re-filled the pump oil just over the red dot.

Also, my machine is 4gpm