From the comments of MBS-13234:

it looks like some kind of formatting issue is happening. i'm trying to add the links https://www.ticketmaster.com/event/Z7r9jZ1A7FeqE and https://www.ticketmaster.com/event/Z7r9jZ1A7ekud to their respective events but it doesn't allow me to. i get the error message "This URL is not allowed for the selected link type, or is incorrectly formatted.". did i put the link in wrong or is this a mistake?