Do you made also some configuration inside the user config YAML file for this plugin?
It is possible that the default timeout is not enough and you should configure this plugin to run not every check interval.
Example config from my systems for the “windows_updates.vbs”
Content is from “C:\programdata\checkmk\agent\check_mk.user.yml”
plugins:
enabled: true
execution:
- pattern : 'windows_updates.vbs'
timeout : 3600
run : yes
async : yes
cache_age : 90000