Fresnius Set Up

Hi, I’m new to Fresnius & this is my second week. I was doing good at first, but my trainer is expecting me to know it alll already just because she’s started me early during my training. I had an off day yesterday & she was yelling and just overall annoyed with me & leaving me by myself to set up the machines. And I was so flustered and upset that it cause me to kinda forget my steps and lose confidence. And second guessing myself. I really love this job already. And I don’t wanna risk it.
Why does my transducers line keep getting wet? I can’t figure it out, when it’s in recirculation mode.