The plugin worked great, but since last week suddenly the message "YOURLS - WordPress to Twitter configuration incomplete" appeared.
On the options-screen the Twitter authentication was gone. But there is no way to authenticate again.
I tried everything. After the normal authentication was not working, I deleted my twitter-app and created a new one. No success. I reseted all yourls settings and entered them again. No success, too.
Any idea why this stopped working suddenly?