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

https://wiki-dale.win/index.php/Why_Does_Reloading_Not_Fix_a_Blocked-By-Client_Error%3F

ERR_BLOCKED_BY_CLIENT means a browser extension or setting is stopping a webpage from loading. The easiest way to check is to open the page in private or incognito mode