Same issue. I went to Customer Service on the website to report, and it asked me to report here.
Having the same problem with the Safari map and other spots on the website, but I have not been keeping track of which ones. I will start keeping better track of when I get the error. I've attached a screenshot of the error I receive when I open the GC website, already signed in, and click on play> view map. Usually able to refresh once and get the map to come up, but sometimes it takes a few tries. This doesn't seem to happen on my mobile device, but rather just on my MacBook Pro (Late 2013) running Safari 15.4 and MacOS 11.6.8. I have been having the error for close to a year, so through at least a few minor software updates.
Thanks for looking into it, Geocaching.com.
