Your title has got one or more corrupt bits in it. Sometimes you can fix it manually. 1. In the dialog box that is showing which page is being published, identify the page. Then go look at every action and condition on the page. Something is wrong. Be sure to check the On Select/Change tabs on check boxes and entry boxes.2. If it happens on the very first page or you don't find anything wrong in #1, check all the section, chapter, and title level options that apply to the page. A quick check is to go to the Page Properties and exclude everything from the parent. If it works, then you know the problem is in some inherited object.3. if after checking everything, no luck, File menu > Export > XML. Close your title. File > Import. Save under a different name and try to publish.