Cannot add events if categories do not exist
description
Using DNN 6.1.4 and Events 6.0.1. I cannot add an event to a calendar if I do not create at least one category. Page logs an error "System.InvalidCastException: Conversion from string "" to type 'Integer' is not valid. ---> System.FormatException: Input string was not in a correct format"
Further, there does not seem to be a method to enable selecting a category when editing an event unless "Enable Category Select" is enabled, which is definitely a change from 6.0.0. I had my test machine setup with various categories which were displayed on the list and form, but without the drop list above the list / calendar to filter by category. Hopefully this is a defect and not a design change. There should be a separate "Use Categories" option.