[itimpi]

That file you uploaded does not load correctly into Internet Explorer - it says there is an invalid character. This suggests that something should have been escaped at the XML or URL level that that has not been. I will see if I can work out exactly which character(s) have caused the problem and when I have done so upload a version of the Calibre2Web script that fixes the problem. At first glance it looks as though the script is not correctly handling non-ASCII characters in a URL. Such URL's can be generated at the moment if you have a non-ASCII character in an author or Title