Website is Not Secure

[Petrogorod]

When I logged in to nationstates this morning i got the "website is not secure" error. When i went to the forums, (here) the site is secure. I am on chrome os current version and google chrome is current version (no duh). Images won't load, website sometimes crashes, not even mentioning that the site is NOT secure. It says the certificate is not valid.
TL;DR nationstates.net is labelled "not secure" but forum.nationstates.net is secure. Something with the certificate i think

[Improper Classifications]

Certificate looks fine to me.
Are you on a school device or something that might otherwise impact the rating?

[Eluvatar]

Our previous certificate would have expired recently. But nobody should be using that certificate, so I have nothing to really go on here.

[Petrogorod]

Certificate looks fine to me.
Are you on a school device or something that might otherwise impact the rating?

yes. this I am on a school device.This nationstate is part of a social studies project. My social studies teacher says this has never happened in the previous years, and that it is just me. idk whats happening. When i get off school Chromebook and log in on my personal PC the site is secure. its just on the Chromebook. Chromebook is on the current update. pc is running the current build of windows 10 pro. Maybe it has to do with the current update? I just updated it a week ago and it started around that time. thanks for helping (or trying )

[Improper Classifications]

Certificate looks fine to me.
Are you on a school device or something that might otherwise impact the rating?

yes. this I am on a school device.This nationstate is part of a social studies project. My social studies teacher says this has never happened in the previous years, and that it is just me. idk whats happening. When i get off school Chromebook and log in on my personal PC the site is secure. its just on the Chromebook. Chromebook is on the current update. pc is running the current build of windows 10 pro. Maybe it has to do with the current update? I just updated it a week ago and it started around that time. thanks for helping (or trying )

Sometimes (to prevent kids from going on non-school sites) administrators of school chromebooks will disable certain sites by "invalidating" their certificate, causing a privacy error and, usually, a redirect. I'd say it's because of your Chromebook.

[United Calanworie]

Try invalidating your cache (hard refreshing). CTRL-SHIFT-R will do the trick.