ERR_BLOCKED_BY_CLIENT means something on your browser is stopping a webpage or...

https://www.mediafire.com/file/824h32433ybk7zk/pdf-45708-83890.pdf/file

ERR_BLOCKED_BY_CLIENT means something on your browser is stopping a webpage or resource from loading. To fix it, try opening the page in private mode. If that works, check your browser extensions and disable any that might be blocking content