For starters, you’re showing a 2V P-P input, not 1V. Have you verified your connections? Your power supply voltage? How are you getting 50mA load current with no load? You Also don’t show the zero point for C1.
your values make no sense. You did something wrong, but currently don´t show us.
How can the output current be 50mA when there is nothing else connected than the 100k resistor?
--> Show a photo where we can see all wiring including power supply and measurement devices.