Plan A New Event Giving Invisible Error Message

Trying to create an event and when I hit create a blank line appears at the top of the screen with an x next to it like it is giving an error message but not telling me what it is. Have tried several times to create the event but each time it fails despite various attempts - at one point while closing the screen I saw ‘Requires Money Account’ but can’t get it to say that again. I also am not requiring any money or fees in my event. This is a new bug because I did not have this problem last time I created an event.