Every good bug report needs exactly three things:
You may find out more about what happened by looking at the output of the Console application which resides in the Utilities folder on your hard disk.
Watch out for lines starting like this:
2019-06-20 17:54:13.265 Posterino. Add those lines to the Description field of this form along with your comment.
Zykloid Software is based in Germany. Taking the time zone shift into account, you can usually expect an answer within one work day. Business hours are Mo - Fr, 9am to 6pm CET. The Office is closed on german public holidays.