I installed xournal more than one year ago. It worked fine. But recently somehow it stopped working. The problem is that I cannot draw anything using the stylus. It simply shows nothing. But when I close the application, it prompts me to save the file. Other than that all the menu item are still visible, but it crashes when I click some of them. I guess it might because I installed something that broke xournal. I tried unstall and install the application again but it still did not work.