An admin has reported to Freshdesk the following problem:
Hi, we have recently change our domain and the address for our Moodle instance changed from (***) to (**) We have registered the new domain and while our Moodle is visible on the public list with a correct url, we are still seeing the message that our site is not registered and under logs in site registration task we see this error: Scheduled task failed: Site registration, This token was used on a site with different url. Registration token on this site has been reset. You can now register your site again." Only solution I've found online was to contact you directly so please help us.
*I will post the actual URLs in a comment below.