Exposure and Risk Adjusted Return in Amibroker Backtest

Below is a snapshot of a backtest report of a test that I performed. Most of the metrics look ok but the Net Risk Adjusted Return is highly negative. I am unable to understand why is that.
Net Risk Adjusted Return is calculated by dividing Net Return divided by Exposure%.
I do not understand what is the impact of this on my trading system and what might be causing this.
Please help, thanks in advance.