Connected but No Internet

[mugiwararocks-gif]

I was able to connect my android and company laptop and it shows Tcp Connection Open and Close but when I check my android and trying to browse. It says that "An application is stopping Chrome from safely connecting to this site "Zscaler" wasn't installed properly on your computer or the network. NET ERR_CERT_AUTHORITY_INVALID." even trying to another website and it says same.

[mugiwararocks-gif]

here's the screenshot of error when I browse any site. if I click ad vance there's no another link/clickable there.