[DanishHaq]

Are you sure you've even got the files in your directory? If you haven't got the sscanf and Whirlpool plugins in your .../plugins/ folder, then you need to put them there.

If your host is Linux, then you need to download the .so plugins and put them in the plugins folder, and then on server.cfg you need to change the plugins line so it has the extension of .so on every single plugin.

Otherwise, if you're running a windows server / host, you don't need a .so / .dll extension inside of your server.cfg file.