ERR_BLOCKED_BY_CLIENT means a browser extension or setting is stopping a...

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

ERR_BLOCKED_BY_CLIENT means a browser extension or setting is stopping a webpage from loading. The quickest fix is to open a private window, which disables most extensions. If the site works there, check your extensions and whitelist the site if needed