hideISP setting checkbox is broken

I was able to observe that the checkbox in the settings page keeps being reset after page refresh.

console error

vue.runtime.common.js?bb15:603 [Vue warn]: Property or method "hideISP" is not defined on the instance but referenced during render. Make sure that this property is reactive, either in the data option, or for class-based components, by initializing the property. See: https://vuejs.org/v2/guide/reactivity.html#Declaring-Reactive-Properties.

found in

---> <Settings> at src/components/settings/settings.vue
       <App> at src/App.vue
         <Root>