Internet browsers not working (except AVG secure)

As of this morning, I have not been able to use any internet browser apart from AVG secure browser (Chrome, Edge not working). I have checked sleep mode and the other browsers are not on sleep mode. I get the following error message:

This site can’t be reached

The web page at Public inquiry: Land Adjacent South Side Marlow Road and A404 Junction, Westhorpe Park, Little Marlow, Buckinghamshire (also known as Marlow Film Studios) | Buckinghamshire Council might be temporarily down or it may have moved permanently to a new web address.

ERR_SSL_BAD_RECORD_MAC_ALERT

And then:

This site can’t provide a secure connection

www.buckinghamshire.gov.uk sent an invalid response.

  • [Try running Windows Network Diagnostics](javascript:diagnoseErrors()).

ERR_SSL_PROTOCOL_ERROR

Windows Network Diagnostics cannot find a solution.