502 errors can be related to temporary network or DNS issues. If it works using the calendar URL but not the custom one, it might be a temporary error in the ...
Missing: sca_esv= ca40933dfed72823&tbm= shop&source= lnms&ved= 200713&ictx= 111
People also ask
How do I check the URL?
What is the last part of a URL called?
What is in a URL?
How to get an URL?