I have an ikiwiki, where I activated the plug-in sidebar: * enable sidebar? yes * show sidebar page on all pages? yes

In order to create the page, I add a link to it on my entrance page: [[sidebar]]. I now can choose where to put it, I put it as "sidebar", not index/sidebar. Language is Markdown, nothing else installed on the system. After saving I can create the page clicking on the "?" and I fill it with links and the plugin pagestats. The sidbar appears properly on all pages, also the tag-cloud.

However, when I try to go into "preferences" I just get an error message, saying it has the format html: "Content-type: text/html " The entire html is \Content-type: text/html

What is happening?