Unable to cancel or edit my own recurring meeting series

[sassylilome]

After doing some digging it seems my issue is due to using my own meeting ID for a meeting series than has run for over a year.  However, now I need to either cancel it or move it and can't. It tells me I'm not the host of the meeting when I try to edit the timing and if I try to cancel it, I get an Error 303 message.  What can I do?