Installed Certificate not working "NET::ERR_CERT_AUTHORITY_INVALID"

Hi, I already installed SSL Certificate for my domain name later I suddenly see a message say’s
" Your connection is not private

Attackers might be trying to steal your information from (for example, passwords, messages, or credit cards). Learn more


I already installe SSL Certificate

Pls how to fix

It been fixed but after checking throughout the forum and the third parties forum I can’t find any problem related to this
but for those who encounter same problem

Try reinstalling your SSL Certificate and leave up to 15min the problem will be solved