How can I check if I currently have the issue?
I see this error in the description snippet on a Google search results page but I don’t know if this is from an old index since the webpage seems to be working normally. https://onthegridagency.com/
Warning: Class __PHP_Incomplete_Class has no unserializer in /home/content/p3pnexwpnas07_data01/28/2838828/html/wp-content/object-cache.php on line ..