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

https://wool-wiki.win/index.php/How_to_Check_if_Your_Browser_Extensions_Are_Syncing_Across_Devices

ERR_BLOCKED_BY_CLIENT means your browser or an extension is stopping a website from loading. To fix it, open the site in a private or incognito window. If it works there, check your browser extensions