We’re using the Wibiya toolbar. The Tweet button has an error and the Wibiya team asked me to get in touch with you guys because their button was developed by Twitter.
When you go on http://albert-schweitzer-stiftung.de and click the button on the bottom of the page, it says “via @via @SchweitzerTiere” at the end of the tweet. It should only say “via @SchweitzerTiere” though.
Can you help?