This version 0.9.0-demo had the goal to fix 2 issues: 1 - A bug allowing you to complete a quest even when you didn't have the required Items.
2 - High CPU usage. Unfortunately, it also introduced a new bug, which happened when you opened the Quest Button in the footer. To fix that, I released version 0.9.1-demo, so please make sure that you are not using the 0.9.0-demo. Sorry for the inconvenience.