"Privacy error" on other tablet

[Sweet Snow]

For some reason today on my older tablet, trying to visit via Chrome greets me with a "privacy error", I can still visit the site in the tablet I am using right now, however, I am wondering what caused this?

 

[Blue]

Try updating your tablet.

 

[Sweet Snow]

Said tablet is a Samung Galaxy Elite

 

[Blue]

Oh....Did you update it anyway? What year did that come out again?

 

[Sweet Snow]

2016, it's up to date

 

[Lakituthequick]

Be specific, what error codes show up?

 

[Sweet Snow]

It mentions the certificate has expired, Google Chrome doesn't supports "HTLM" and there is connection issues, I tried to adress the last one by restarting my router
I got a screencap

 

[Lakituthequick]

Clicking on NET::ERR_* usually shows some more information, what does that say?

HSTS is not a warning about support, it is actually making sure nothing funky happens security wise.

 

[Sweet Snow]

It actually started working again last night, so I am unable to answer this