what do you think my friend mess up on when he was bleeding my brakes now my van

What is your question?

i ask my friend to do my back brakes he said he knew how i have drum brakes in the back ,disc brakes in the front, with ABS , so he put the brakes on but he keep messing up when it came to bleeding the brakes.long story short my van is leaking in the front in i seen some brake fluid on my driver side tire what did he break or not tight up , so of course my brake pedal is all the way to the ground i can stop the van-- but there no pressure- what did he mess up on my van??? why is it leaking in the front now