I will give you a description of vulnerability. You should extract vulnerable functions. Write the output in following format: 
FUNCS function1, function2, ...
If you found no functions, output "NONE". Print only funcitons mentioned in description. Ignore URLs.

Here is the description:
RegionProtect is a plugin that allows users to manage certain events in certain regions of the world. Versions prior to 1.1.0 contain a YAML injection vulnerability that can cause an instant server crash if the passed arguments are not matched. Version 1.1.0 contains a patch for this issue. As a workaround, restrict operator permissions to untrusted people and avoid entering arguments likely to cause a crash.
