Problem facing while generating Boresch restraints

[shilpa888]

Hello,
I want to generate Boresch restraints for my systems to be used later in ABFE calculation. I am not confident in selecting the parameters manually, so I found YANK can do that for you. I have installed YANK and I am able to run it but when I asked it to generate restraints automatically it says "unallowed value auto_protocol". I am attaching my yaml script here.
yank.txt

Any help would be much appreciated.

Thank you.
Shilpa