I am facing the following error every time when i set featured image manually.But after this error when post is published it shows that image normally which i assign as a thumbnail.
Fatal error: Unknown: Cannot use output buffering in output buffering display handlers in Unknown on line 0
Also when ever I try to publish any new post my whole website gets down for at least 5 minutes and post editor just keep on loading and publishing the post for 5 minutes.But even after that no thumbnails appears.
I am using Auto Post Thumbnail plugin for generating automatic thumbnails.
Please anybody help me how to fix it.This error has made me sick :s I cant even post anything new to my website.