This webpage is not available什么意思?

This webpage is not available什么意思? All of a sudden SuperMemo started asking me Do you want to allow this webpage to access your Clipboard?.It happens each time I try to add an article!How can I disable this?Answer This prompt is by Internet Explorer,not SuperMemo.Change Tools :Inter 英语翻译Hello,how do you explain it is showing 30 sold and more than 10 available on eBay webpage for this item right now as I write...Does this have anything to do with my best offer being $1 less than the Buy-it-now price...You should not have 如何阻止the current webpage is trying to open a site on the internet.do you want to allow this?如图 如何阻止the current webpage is trying to open a site on the internet.do you want to allow this?IE的Security Warning.如图 this is not this is not Is not this this is not a this.is.not.a. this card is not available This Is Not Love 歌词 This Site Is Not Exit! This is not the first This battery is not rechargeable. This is ,however,not the this is not will`s This is not the original