Remote Control Web Interface not working

Hi, I am trying to install the remote control web interface plugin to my project and I am getting a few errors. I am following you documentation on how to use it but this message keeps popping up when I try to open my project after I install Remote Control API, and the Remote Control Web Interface. When I restart it after I install the Remote Control API everything is fine but when I do the Remote Control Web Interface and restart it, that’s when things go wrong. Do you know how to fix this?