Hey there,

I am really sorry for the delay of this reply as it is a weekend for us here.

I've tried to login in your Joomla backend but I hitting this : This web page is not available

By the way, can you try go to your Joomla backend > Easydiscuss > setting > Layout > General > select Compile stylesheet to "Cache" > Save > Then go back the page Click "test compile" (test admin, site, and module) > when all test completed > then go to Easydiscuss Dashboard > Click "Clear Cache" > Then clear Joomla cache and see that error is it still persists?