ERR_BLOCKED_BY_CLIENT means your browser or an extension is stopping a website...

https://front-wiki.win/index.php/How_Do_I_Fix_ERR_BLOCKED_BY_CLIENT_on_Firefox%3F

ERR_BLOCKED_BY_CLIENT means your browser or an extension is stopping a website from loading. To fix it quickly, try opening the site in private mode. If that works, check your browser extensions and disable anything blocking the site