Created attachment 380432 [details]
I am unsure if we should maybe treeclean it as looks dead for ages.
The crash occurs following this:
1. Launch it
2. Select a day
3. A warning telling me to choose a comic strip is shown (but it occurs the same even if I select one before and this dialog isn't shown)
4. It crashes as soon as I close that window (or as soon as I click on the day if I selected a comic strip before)