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

https://www.red-bookmarks.win/err-blocked-by-client-means-your-browser-or-an-extension-is-stopping-a-website-1

ERR_BLOCKED_BY_CLIENT means your browser or an extension is blocking a website or content from loading. To fix it, try opening the page in a private window to see if the problem persists