Personal Zoom Room ID

I have been running a recurring weekly meeting for ages and today it did not appear in the upcoming meetings under its name.  I have eventually found the same meeting ID under the personal meeting rooms tab with a new name and it has been assigned to me as my personal meeting room ID.  How do I get it to revert to its original settings because it has been widely publicised in its previous incarnation and my attendees are not very good at coping with change?